Granted Patent
Utility
US 4,602,812 · App. 06/496,637
Adjustable double hook latch
Inventor:
William R. Bourne
Patented Case
View Patent ↗
Granted: Jul 29, 1986
Filed: May 20, 1983
Inventor
William R. Bourne
Assignee (at issue)
Hartwell Corporation
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.