Granted Patent
Utility
US 4,294,062 · App. 06/134,721
Sensing bar
Inventor:
Shaun A. Seymour
Patented Case
View Patent ↗
Granted: Oct 13, 1981
Filed: Mar 27, 1980
Inventor
Shaun A. Seymour
Assignee (at issue)
Sperry Corp.
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.