Granted Patent
Utility
US 4,616,671 · App. 06/574,403
Valve with flow force compensator
Inventors:
Allan R. Steinkuhl, Steven D. Cayton
Patented Case
View Patent ↗
Granted: Oct 14, 1986
Filed: Jan 27, 1984
Inventors
Allan R. Steinkuhl
Steven D. Cayton
Assignee (at issue)
TRW Limited
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.