Granted Patent
Utility
US 4,324,954 · App. 06/154,677
Dialing circuits and methods for electronic telephone sets
Inventor:
Raymond G. Taylor
Patented Case
View Patent ↗
Granted: Apr 13, 1982
Filed: May 30, 1980
Inventor
Raymond G. Taylor
Assignee (at issue)
Western Electric Company, Inc.
This patent predates the USPTO's electronic file wrapper — prosecution documents from this era exist only in the Patent Office's paper records. A certified copy of the file history can be ordered from the USPTO's paper archives.