Granted Patent
Utility
US 5,335,950 · App. 07/928,585
Door lockset with spindle bearing
Inventors:
David Mirshafiee, Gary R. Bergen
Patented Case
View Patent ↗
Granted: Aug 9, 1994
Filed: Aug 13, 1992
Inventors
David Mirshafiee
Gary R. Bergen
Assignee (at issue)
Emhart Inc.
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.