Granted Patent
Utility
US 4,807,473 · App. 07/135,705
Thermoplastic sight monitor
Inventor:
William A. Jackson
Patented Case
View Patent ↗
Granted: Feb 28, 1989
Filed: Dec 21, 1987
Inventor
William A. Jackson
Assignee (at issue)
Jogler, 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.