Granted Patent
Utility
US 4,380,342 · App. 06/189,548
Fluid sealing devices
Inventor:
George K. Fling
Patented Case
View Patent ↗
Granted: Apr 19, 1983
Filed: Sep 22, 1980
Inventor
George K. Fling
Assignee (at issue)
Vought 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.