Granted Patent
Utility
US 4,333,387 · App. 06/127,735
Anti-jam hydraulic servo valve
Inventor:
Clyde R. Seitz
Patented Case
View Patent ↗
Granted: Jun 8, 1982
Filed: Mar 6, 1980
Inventor
Clyde R. Seitz
Assignee (at issue)
Bertea 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.