Granted Patent
Utility
US 4,332,215 · App. 06/192,897
Milking inflation
Inventor:
Leigh R. Larson
Patented Case
View Patent ↗
Granted: Jun 1, 1982
Filed: Oct 1, 1980
Inventor
Leigh R. Larson
Assignee (at issue)
Hi-Life Rubber, 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.