The Telephone Cases | |
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Argued January 24–28, 31, February 1–4, 7–8, 1887 Decided March 19, 1888 | |
Full case name | Dolbear v. American Bell Telephone Company; Molecular Telephone Company v. American Bell Telephone Company; American Bell Telephone Company v. Molecular Telephone Company; Clay Commercial Telephone Company v. American Bell Telephone Company; People's Telephone Company v. American Bell Telephone Company; Overland Telephone Company v. American Bell Telephone Company |
Citations | 126 U.S. 1 ( more ) 8 S. Ct. 778; 31 L. Ed. 863 |
Holding | |
The Bell Company patent was valid and that the Molecular case was reversed. | |
Court membership | |
| |
Case opinions | |
Majority | Waite, joined by Miller, Matthews, Blatchford |
Dissent | Bradley, joined by Field, Harlan |
Gray and Lamar took no part in the consideration or decision of the case. |
The Telephone Cases, 126 U.S. 1 (1888), were a series of U.S. court cases in the 1870s and the 1880s related to the invention of the telephone, which culminated in an 1888 decision of the U.S. Supreme Court that upheld the priority of the patents belonging to Alexander Graham Bell. Those patents were used by the American Bell Telephone Company and the Bell System, although they had also acquired critical microphone patents from Emile Berliner.
The objector (or plaintiff) in the Supreme Court case was initially the Western Union telegraph company, which was then a far-larger and better financed competitor than American Bell Telephone. Western Union advocated several more recent patent claims of Daniel Drawbaugh, Elisha Gray, Antonio Meucci, and Philip Reis in a bid to invalidate Alexander Graham Bell's master and subsidiary telephone patents dating from March 1876. A decision for Western Union would have immediately destroyed the Bell Telephone Company, and might have allowed the former company, instead of the latter, to become the world's largest telecommunications monopoly.
The Supreme Court came within one vote of overturning the Bell patent because of the eloquence of lawyer Lysander Hill for the Peoples Telephone Company. [1] In a lower court, the Peoples Telephone Company stock rose briefly during the early proceedings but dropped after its claimant, Daniel Drawbaugh, took the stand and testified: "I don't remember how I came to it. I had been experimenting in that direction. I don't remember of getting at it by accident either. I don't remember of anyone talking to me of it." [1]
In the case, the Supreme Court affirmed:
The Supreme Court reversed American Bell Tel Co. v. Molecular Tel. Co., 32 F. 214.
Bell's second fundamental patent expired on January 30, 1894, when the gates were then opened to independent telephone companies to compete with the Bell System. In all, the American Bell Telephone Company and its successor, AT&T, litigated 587 court challenges to its patents, including five that went to the US Supreme Court and, aside from two minor contract lawsuits, never lost a single case that was concluded with a final stage judgment. [1] [2]
The Court's decision in the Telephone Cases is notable for the size of the opinions delivered; together, they occupy the entire 126th volume of the United States Reports .
Among the notable court cases involving the Bell Telephone Company, later renamed to the American Bell Telephone Company, were those related to challenges by Elisha Gray, a principal in Western Electric, as depicted in the Elisha Gray and Alexander Bell telephone controversy.
Additionally the Bell Company became embroiled in a number of challenges from those companies associated with Antonio Meucci, as shown in the Canadian Parliamentary Motion on Alexander Graham Bell, itself a response to the United States HRes. 269 on Antonio Meucci.
Alexander Graham Bell was a Scottish-born inventor, scientist and engineer who is credited with patenting the first practical telephone. He also co-founded the American Telephone and Telegraph Company (AT&T) in 1885.
A telephone is a telecommunications device that permits two or more users to conduct a conversation when they are too far apart to be easily heard directly. A telephone converts sound, typically and most efficiently the human voice, into electronic signals that are transmitted via cables and other communication channels to another telephone which reproduces the sound to the receiving user. The term is derived from Greek: τῆλε and φωνή, together meaning distant voice. A common short form of the term is phone, which came into use early in the telephone's history.
Johann Philipp Reis was a self-taught German scientist and inventor. In 1861, he constructed the first make-and-break telephone, today called the Reis telephone.
Antonio Santi Giuseppe Meucci was an Italian inventor and an associate of Giuseppe Garibaldi, a major political figure in the history of Italy. Meucci is best known for developing a voice-communication apparatus that several sources credit as the first telephone.
Elisha Gray was an American electrical engineer who co-founded the Western Electric Manufacturing Company. Gray is best known for his development of a telephone prototype in 1876 in Highland Park, Illinois. Some recent authors have argued that Gray should be considered the true inventor of the telephone because Alexander Graham Bell allegedly stole the idea of the liquid transmitter from him. Although Gray had been using liquid transmitters in his telephone experiments for more than two years previously, Bell's telephone patent was upheld in numerous court decisions.
This timeline of the telephone covers landline, radio, and cellular telephony technologies and provides many important dates in the history of the telephone.
Amos Emerson Dolbear was an American physicist and inventor. Dolbear researched electrical spark conversion into sound waves and electrical impulses. He was a professor at University of Kentucky in Lexington from 1868 until 1874. In 1874 he became the chair of the physics department at Tufts University in Medford, Massachusetts. He is known for his 1882 invention of a system for transmitting telegraph signals without wires. In 1899 his patent for it was purchased in an unsuccessful attempt to interfere with Guglielmo Marconi's wireless telegraphy patents in the United States.
The invention of the telephone was the culmination of work done by more than one individual, and led to an array of lawsuits relating to the patent claims of several individuals and numerous companies.
Gardiner Greene Hubbard was an American lawyer, financier, and community leader.
The Bell Telephone Company was organized in Boston, Massachusetts, on July 9, 1877, by Alexander Graham Bell's father-in-law Gardiner Greene Hubbard, who also helped organize the New England Telephone and Telegraph Company. A common law joint-stock company, the Bell Telephone Company was started on the basis of holding "potentially valuable patents", principally Bell's master telephone patent #174465. Upon its inception, the Bell Telephone Company was organized with Hubbard as trustee, although he was additionally its de facto president, since he also controlled his daughter's shares by power of attorney, and with Thomas Sanders, its principal financial backer, as treasurer.
The Elisha Gray and Alexander Graham Bell controversy concerns the question of whether Gray and Bell invented the telephone independently. This issue is narrower than the question of who deserves credit for inventing the telephone, for which there are several claimants.
This history of the telephone chronicles the development of the electrical telephone, and includes a brief overview of its predecessors. The first telephone patent was granted to Alexander Graham Bell in 1876.
Acoustic telegraphy was a name for various methods of multiplexing telegraph messages simultaneously over a single telegraph wire by using different audio frequencies or channels for each message. A telegrapher used a conventional Morse key to tap out the message in Morse code. The key pulses were transmitted as pulses of a specific audio frequency. At the receiving end a device tuned to the same frequency resonated to the pulses but not to others on the same wire.
The following outline is provided as an overview of and topical guide to telecommunication:
A patent caveat, often shortened to caveat, was a legal document filed with the United States Patent Office.
A water microphone or water transmitter is based on Ohm's law that current in a wire varies inversely with the resistance of the circuit. The sound waves from a human voice cause a diaphragm to vibrate which causes a needle or rod to vibrate up and down in water that has been made conductive by a small amount of acid. As the needle or rod vibrates up and down in the water, the resistance of the water fluctuates which causes alternating current in the circuit. For this to work, the resistance of the water must vary substantially over the short distance the needle or rod vibrates. Acidulated water works well because only a small amount of acid is added. If one millimeter of acidulated water has a resistance of 100 ohms, two millimeters would have 200 ohms which would produce enough alternating current to transmit audio signals in thousands of feet of wire. Mercury will not work because the resistance of one millimeter of mercury is less than a tenth of an ohm and vibration of a needle in mercury would produce negligible alternating current.
Daniel Drawbaugh was a purported inventor of the telephone for which he sought a patent in 1880. His claims were contested by the Bell Telephone Company, which won a court decision in 1888.
These are some of the links to articles that are telephone related.
Enos Melancthon Barton was an American electrical engineer who, with Elisha Gray, co-founded Western Electric Manufacturing Company.
The Edison National Historical Park (ENHP) archives has seven bound volumes and one pamphlet of Patent Office proceedings relating to conflicting claims over who invented the telephone. Four of these volumes contain the record of a group of interferences entitled Cases A through L and Case No. 1. The disputant parties were Thomas Edison, Alexander Graham Bell, Elisha Gray, A. E. Dolbear, J. W. McDonough, George B. Richmond, William L. Voelker, J. H. Irwin, and Francis Blake, Jr. Although Edison's preliminary statements were filed in September 1878, testimony was not taken until 1880. This record was printed in 1881. The second volume contains Edison's exhibits, including photo-lithographs of laboratory drawings, patents and patent applications, and newspaper and journal articles. The drawings have exhibit numbers corresponding to a page/volume numbering scheme used by Edison and his patent attorney Lemuel W. Serrell in 1880 when Edison's technical notes and drawings were numbered and examined for possible inclusion as exhibits in these interferences. Many of the documents in this numbered series were not selected as exhibits; they remain in the archives at the Edison National Historical Park....