Granted Patent
Utility
US 4,616,528 · App. 06/374,382
Valve actuator with continuous manual override
Inventors:
Richard F. Malinski, John Sikorcin
Patented Case
View Patent ↗
Granted: Oct 14, 1986
Filed: May 3, 1982
Inventors
Richard F. Malinski
John Sikorcin
Assignee (at issue)
VAPOR CORP.
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.