Granted Patent
Utility
US 4,965,446 · App. 07/340,847
Optical interrupter system with vibration compensation
Inventor:
Tom Vyse
Patented Case
View Patent ↗
Granted: Oct 23, 1990
Filed: Apr 20, 1989
Inventor
Tom Vyse
Assignee (at issue)
IVAC Corporation
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.