Granted Patent
Utility
US 4,337,001 · App. 06/172,624
Releasable ribbon locking device in a ribbon cartridge
Inventor:
Samuel D. Cappotto
Patented Case
View Patent ↗
Granted: Jun 29, 1982
Filed: Jul 28, 1980
Inventor
Samuel D. Cappotto
Assignee (at issue)
SCM Consultants, 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.