Granted Patent
Utility
US 4,622,861 · App. 06/728,067
Actuator mechanism
Inventor:
Stephen Hill
Patented Case
View Patent ↗
Granted: Nov 18, 1986
Filed: Apr 29, 1985
Inventor
Stephen Hill
Assignee (at issue)
GRASS VALLEY 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.