Granted Patent
Utility
US 5,031,896 · App. 07/466,520
Sheet detector
Inventor:
Theodore Winkler
Patented Case
View Patent ↗
Granted: Jul 16, 1991
Filed: Jan 17, 1990
Inventor
Theodore Winkler
Assignee (at issue)
THE BRANDT COMPANIES, LLC
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.