Granted Patent
Utility
US 4,304,457 · App. 05/972,827
Electrical connector
Inventor:
Frederic Lissau
Patented Case
View Patent ↗
Granted: Dec 8, 1981
Filed: Dec 26, 1978
Inventor
Frederic Lissau
Assignee (at issue)
Sloan Valve Company
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.