Granted Patent
Utility
US 4,862,922 · App. 06/458,815
Abrasion resistant sleeve for flat substrates
Inventor:
Joseph S. Kite, III
Patented Case
View Patent ↗
Granted: Sep 5, 1989
Filed: Jan 18, 1983
Inventor
Joseph S. Kite, III
Assignee (at issue)
The Bentley-Harris Manufacturing Company
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.