Granted Patent
Utility
US 4,347,995 · App. 06/218,954
Bi-directional tape reel brake
Inventor:
Walter J. Mahnken
Patented Case
View Patent ↗
Granted: Sep 7, 1982
Filed: Dec 22, 1980
Inventor
Walter J. Mahnken
Assignee (at issue)
Honeywell Limited
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.