Granted Patent
Utility
US 6,543,294 · App. 09/737,924
Sealed pressure indicator
Inventors:
Frank B. Stamps, Ronnie L. Martin, James L. Braswell, Jr.
Patented Case
View Patent ↗
Granted: Apr 8, 2003
Filed: Dec 15, 2000
Inventors
Frank B. Stamps
Ronnie L. Martin
James L. Braswell, Jr.
Assignee (at issue)
Bell Helicopter Textron 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.