Granted Patent
Utility
US 4,589,691 · App. 06/607,007
Lever handle mortise lock
Inventors:
William R. Foshee, Kevin Carey
Patented Case
View Patent ↗
Granted: May 20, 1986
Filed: May 4, 1984
Inventors
William R. Foshee
Kevin Carey
Assignee (at issue)
Best Lock 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.