Granted Patent
Utility
US 4,532,504 · App. 06/416,397
Slew length timer
Inventor:
Paul Fisher
Patented Case
View Patent ↗
Granted: Jul 30, 1985
Filed: Sep 9, 1982
Inventor
Paul Fisher
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.