Granted Patent
Utility
US 4,431,950 · App. 06/402,772
Capstan drive system for high speed tape duplicator
Inventor:
Barrett P. Bingaman
Patented Case
View Patent ↗
Granted: Feb 14, 1984
Filed: Jul 28, 1982
Inventor
Barrett P. Bingaman
Assignee (at issue)
Cetec AG
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.