Granted Patent
Utility
US 4,523,133 · App. 06/339,140
Tape transport system with tension sensing bearings
Inventor:
Carl R. Messenger
Patented Case
View Patent ↗
Granted: Jun 11, 1985
Filed: Jan 13, 1982
Inventor
Carl R. Messenger
Assignee (at issue)
Computer Peripherals 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.