Granted Patent
Utility
US 4,438,539 · App. 06/321,251
Actuator for generating tool head
Inventor:
Raymond A. Stephens
Patented Case
View Patent ↗
Granted: Mar 27, 1984
Filed: Nov 13, 1981
Inventor
Raymond A. Stephens
Assignee (at issue)
The Valeron 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.