Granted Patent
Utility
US 4,344,073 · App. 06/185,275
Film break detector
Inventor:
Robert M. Rawlings
Patented Case
View Patent ↗
Granted: Aug 10, 1982
Filed: Sep 8, 1980
Inventor
Robert M. Rawlings
Assignee (at issue)
Padco, 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.