Granted Patent
Utility
US 5,152,673 · App. 07/742,960
Fluid pumping assembly having a control valve boss fluid by-pass
Inventors:
Edward D. Pettitt, Robert L. Swadner
Patented Case
View Patent ↗
Granted: Oct 6, 1992
Filed: Aug 9, 1991
Inventors
Edward D. Pettitt
Robert L. Swadner
Assignee (at issue)
General Motors 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.