Granted Patent
Utility
US 6,598,561 · App. 10/259,151
Squirrel proof bird feeder
Inventor:
Troy Johns
Patented Case
View Patent ↗
Granted: Jul 29, 2003
Filed: Sep 27, 2002
Inventor
Troy Johns
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.