Granted Patent
Utility
US 5,145,145 · App. 07/667,138
Pilot operated electrically actuated value assembly
Inventors:
James M. Pick, Robert J. Cooper, Richard A. Donner
Patented Case
View Patent ↗
Granted: Sep 8, 1992
Filed: Mar 11, 1991
Inventors
James M. Pick
Robert J. Cooper
Richard A. Donner
Assignee (at issue)
Eaton Corporation
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.