Granted Patent
Utility
US 4,476,811 · App. 06/428,847
Adjustable feeder with brood gate
Inventor:
Ray E. Swartzendruber
Patented Case
View Patent ↗
Granted: Oct 16, 1984
Filed: Sep 30, 1982
Inventor
Ray E. Swartzendruber
Assignee (at issue)
Chore-Time Equipment, 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.