Granted Patent
Utility
US 5,727,824 · App. 08/694,147
Isolative coupling for a thumb-lever unit of a door lockset
Inventors:
William D. Smith, Bella Rubin, Beat Heri
Patented Case
View Patent ↗
Granted: Mar 17, 1998
Filed: Aug 8, 1996
Inventors
William D. Smith
Bella Rubin
Beat Heri
Assignee (at issue)
Schlage Lock Company LLC
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.