Granted Patent
Utility
US 6,477,981 · App. 09/973,307
Pet feeder including a safety restriction device
Inventor:
Michael Harper
Patented Case
View Patent ↗
Granted: Nov 12, 2002
Filed: Oct 9, 2001
Inventor
Michael Harper
Assignee (at issue)
Doskocil Manufacturing Company, 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.