Granted Patent
Utility
US 6,463,861 · App. 09/896,176
Anti-drift retarder for gear operated door
Inventor:
Scot J. Nottingham
Patented Case
View Patent ↗
Granted: Oct 15, 2002
Filed: Jun 29, 2001
Inventor
Scot J. Nottingham
Assignee (at issue)
YSD Industries 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.