Granted Patent
Utility
US 4,241,293 · App. 06/066,604
Scanner for detecting and indicating missing and wedged articles in slat-type counting machine
Inventor:
Charles F. Bross
Patented Case
View Patent ↗
Granted: Dec 23, 1980
Filed: Aug 15, 1979
Inventor
Charles F. Bross
Assignee (at issue)
Pennwalt 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.