Granted Patent
Utility
US 4,253,689 · App. 06/033,149
Spring latch mechanism
Inventor:
Donald S. McKee
Patented Case
View Patent ↗
Granted: Mar 3, 1981
Filed: Apr 24, 1979
Inventor
Donald S. McKee
Assignee (at issue)
The Scott Fetzer Company
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.