Granted Patent
Utility
US 4,613,730 · App. 06/188,676
Electronic telephone with feature access and speed dialing including loop breaks
Inventors:
William Fechalos, Satyan G. Pitroda
Patented Case
View Patent ↗
Granted: Sep 23, 1986
Filed: Sep 19, 1980
Inventors
William Fechalos
Satyan G. Pitroda
Assignee (at issue)
Rockwell International Corporation
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.