Granted Patent
Utility
US 4,620,813 · App. 06/658,796
Position retaining mechanism
Inventor:
William A. Lacher
Patented Case
View Patent ↗
Granted: Nov 4, 1986
Filed: Oct 9, 1984
Inventor
William A. Lacher
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.