Granted Patent
Utility
US 4,398,629 · App. 06/416,260
Plate latch and guide system
Inventor:
Calvin C. Williamson
Patented Case
View Patent ↗
Granted: Aug 16, 1983
Filed: Sep 9, 1982
Inventor
Calvin C. Williamson
Assignee (at issue)
Kaiser Steel 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.