Granted Patent
Utility
US 4,788,558 · App. 07/012,209
Method and apparatus for controlling tension in tape progressed along a feed path
Inventors:
Edward D. Caldwell, David Anthony Ballard
Patented Case
View Patent ↗
Granted: Nov 29, 1988
Filed: Feb 6, 1987
Inventors
Edward D. Caldwell
David Anthony Ballard
Assignee (at issue)
INTERMEC, 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.