Granted Patent
Utility
US 4,352,367 · App. 06/170,084
Electro-hydraulic control structure
Inventor:
Frederic W. Pollman
Patented Case
View Patent ↗
Granted: Oct 5, 1982
Filed: Jul 18, 1980
Inventor
Frederic W. Pollman
Assignee (at issue)
Sundstrand 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.