Granted Patent
Utility
US 5,141,541 · App. 07/702,912
Jack top receiver for a vacuum waste removal system
Inventor:
Paul J. Buckingham
Patented Case
View Patent ↗
Granted: Aug 25, 1992
Filed: May 20, 1991
Inventor
Paul J. Buckingham
Assignee (at issue)
Abington, 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.