Granted Patent
Utility
US 4,407,201 · App. 06/260,242
Retard sensor and energy converter
Inventor:
Norman E. Jensen
Patented Case
View Patent ↗
Granted: Oct 4, 1983
Filed: May 4, 1981
Inventor
Norman E. Jensen
Assignee (at issue)
Honeywell Limited
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.