Granted Patent
Utility
US 3,945,036 · App. 05/499,365
Information recording transport with tape tension equalization between distinct capstans
Inventor:
Irving Karsh
Patented Case
View Patent ↗
Granted: Mar 16, 1976
Filed: Aug 21, 1974
Inventor
Irving Karsh
Assignee (at issue)
Bell and Howell, LLC
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.