Granted Patent
Utility
US 4,632,063 · App. 06/785,614
Animal holding gate with automatic closing operation
Inventor:
William D. Priefert
Patented Case
View Patent ↗
Granted: Dec 30, 1986
Filed: Oct 9, 1985
Inventor
William D. Priefert
Assignee (at issue)
Priefert Mfg. Co, 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.