Granted Patent
Utility
US 4,947,304 · App. 07/377,620
Underwater lamp having watertight electrical connection
Inventors:
Thomas B. Payne, Ernest M. Schmidt
Patented Case
View Patent ↗
Granted: Aug 7, 1990
Filed: Jul 10, 1989
Inventors
Thomas B. Payne
Ernest M. Schmidt
Assignee (at issue)
UTE Corp
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.