Granted Patent
Utility
US 4,979,546 · App. 07/383,880
Filling valve apparatus
Inventors:
Robert W. LaWarre, Sr., Robert W. LaWarre, Jr.
Patented Case
View Patent ↗
Granted: Dec 25, 1990
Filed: Jul 20, 1989
Inventors
Robert W. LaWarre, Sr.
Robert W. LaWarre, Jr.
Assignee (at issue)
LaWarre Precision Technologies, Inc. by Robert LaWarre, Jr.
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.