Granted Patent
Utility
US 4,528,681 · App. 06/454,265
Button depression click generator
Inventor:
Emanuel J. Fulcomer, Jr.
Patented Case
View Patent ↗
Granted: Jul 9, 1985
Filed: Dec 29, 1982
Inventor
Emanuel J. Fulcomer, Jr.
Assignee (at issue)
AT&T Bell Laboratories
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.