Granted Patent
Utility
US 4,626,639 · App. 06/630,331
Apparatus for stabilizing a keyboard switch assembly against cantilever movement
Inventor:
Robert G. Bradford
Patented Case
View Patent ↗
Granted: Dec 2, 1986
Filed: Jul 11, 1984
Inventor
Robert G. Bradford
Assignee (at issue)
Burroughs, 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.