Granted Patent
Utility
US 6,158,385 · App. 09/190,466
Bird feeder with electronic squirrel deterrence
Inventor:
Randal D. Boyd
Patented Case
View Patent ↗
Granted: Dec 12, 2000
Filed: Nov 12, 1998
Inventor
Randal D. Boyd
Assignee (at issue)
Radio Systems Corporation
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.