Granted Patent
Utility
US 4,977,856 · App. 07/275,897
Rapid exit parlor system
Inventor:
Eugene E. Norwood
Patented Case
View Patent ↗
Granted: Dec 18, 1990
Filed: Nov 25, 1988
Inventor
Eugene E. Norwood
Assignee (at issue)
Dairyland Automation, 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.