Search results
Results from the WOW.Com Content Network
about 9:30 am: Gray or his lawyer brings Gray's patent caveat for the telephone to the Washington, D.C. Patent Office (a caveat was a notice of intention to file a patent application. It was like a patent application , but without a request for examination, for the purpose of notifying the patent office of a possible invention in process).
The Intellectual Property Organisation of Pakistan (Urdu: دانشورانه املاک تنظیمِ پاکستان, abbreviated as IPOP) is an autonomous institution of the Government of Pakistan, concerned with copyright, trademarks, patents, and other general types of intellectual property regulation.
That first patent by Bell was the master patent of the telephone, from which other patents for electric telephone devices and features flowed. [ 12 ] In 1876, shortly after Bell's patent application, Hungarian engineer Tivadar Puskás proposed the telephone switch, which allowed for the formation of telephone exchanges , and eventually networks.
The name on the first telephone patent, which was granted on March 7, 1876, reads "A.G. Bell" -- Alexander Graham Bell. The reality of its invention is much Innovation, Intrigue, Subterfuge, and ...
When the Bell telephone patents expired and many new telephone manufacturers began competing, acoustic telephone makers quickly went out of business. Their maximum range was very limited. [ 2 ] An example of one such company was the Pulsion Telephone Supply Company created by Lemuel Mellett in Massachusetts, which designed its version in 1888 ...
George H. Sweigert (1920–1999) is credited as the first inventor to patent the cordless telephone. [1]Born in Akron, Ohio, Sweigert served five years in the US Army as a radio operator in World War II in Guadalcanal, Bougainville, Fiji and New Georgia assigned to the 145th Headquarters Company under the 37th Infantry Division (United States).
For premium support please call: 800-290-4726
The master telephone patent, 174465, granted to Bell, March 7, 1876 The electric telephone was invented in the 1870s, based on earlier work with harmonic (multi-signal) telegraphs . The first commercial telephone services were set up in 1878 and 1879 on both sides of the Atlantic in the cities of New Haven , Connecticut in the US and London ...