Granted Patent
Utility
US 5,263,222 · App. 07/891,829
Automotive windshield ice scraper
Inventor:
James R. Johnstone, II
Patented Case
View Patent ↗
Granted: Nov 23, 1993
Filed: Jun 1, 1992
Inventor
James R. Johnstone, II
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.