Granted Patent
Utility
US 4,166,402 · App. 05/844,480
Indexing rotary actuator with energy storage and linkage locking means
Inventor:
Wilson P. Rayfield
Patented Case
View Patent ↗
Granted: Sep 4, 1979
Filed: Oct 21, 1977
Inventor
Wilson P. Rayfield
Assignee (at issue)
Burroughs, Inc.
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.