Granted Patent
Utility
US 5,493,165 · App. 08/335,213
Force generator for electrostrictive actuators
Inventors:
Thomas Edward Smith, Robert Zappulla, George G. Zipfel, Jr.
Patented Case
View Patent ↗
Granted: Feb 20, 1996
Filed: Nov 4, 1994
Inventors
Thomas Edward Smith
Robert Zappulla
George G. Zipfel, Jr.
Assignee (at issue)
AT&T 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.