Granted Patent
Utility
US 5,171,049 · App. 07/702,256
Key-in knob door assembly with notched turn bar self-aligning button and installation catches
Inventors:
Kenneth N. Grandy, Dennis E. Resch
Patented Case
View Patent ↗
Granted: Dec 15, 1992
Filed: May 17, 1991
Inventors
Kenneth N. Grandy
Dennis E. Resch
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.