Granted Patent
Utility
US 4,768,550 · App. 07/081,753
Manifold fitting for a compressed air tank
Inventors:
Joseph L. Krechel, Michael J. Purvis, Paul F. Ross, II
Patented Case
View Patent ↗
Granted: Sep 6, 1988
Filed: Aug 5, 1987
Inventors
Joseph L. Krechel
Michael J. Purvis
Paul F. Ross, II
Assignee (at issue)
Control Devices, LLC
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.