Granted Patent
Utility
US 4,785,666 · App. 06/944,321
Method of increasing the sensitivity of a leak detector in the probe mode
Inventor:
Lyle E. Bergquist
Patented Case
View Patent ↗
Granted: Nov 22, 1988
Filed: Dec 19, 1986
Inventor
Lyle E. Bergquist
Assignee (at issue)
LOCKHEED MARTIN 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.