Granted Patent
Utility
US 5,106,169 · App. 07/652,576
Adapter for interconnecting empty/load valve with storage canister
Inventor:
Richard Barefoot
Patented Case
View Patent ↗
Granted: Apr 21, 1992
Filed: Feb 8, 1991
Inventor
Richard Barefoot
Assignee (at issue)
Eilcon National, 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.