Granted Patent
Utility
US 6,651,988 · App. 09/748,990
Compact actuator with hydraulic seal
Inventors:
Gregory Waston Terpay, George G. Zipfel, Jr.
Patented Case
View Patent ↗
Granted: Nov 25, 2003
Filed: Dec 27, 2000
Inventors
Gregory Waston Terpay
George G. Zipfel, Jr.
Assignee (at issue)
General Dynamics Advanced Information Systems, 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.