Granted Patent
Utility
US 3,930,413 · App. 05/391,859
Quick release gauge fitting
Inventors:
Richard P. Laird, William M. Sills
Patented Case
View Patent ↗
Granted: Jan 6, 1976
Filed: Aug 27, 1973
Inventors
Richard P. Laird
William M. Sills
Assignee (at issue)
Caterpillar Tractor Co.
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.