Granted Patent
Utility
US 4,373,465 · App. 06/193,763
Visual fluid level indicator
Inventor:
Robert F. Gaiser
Patented Case
View Patent ↗
Granted: Feb 15, 1983
Filed: Oct 3, 1980
Inventor
Robert F. Gaiser
Assignee (at issue)
Bendix Limited
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.