Granted Patent
Utility
US 5,977,498 · App. 08/935,214
Submersible switch with static seal
Inventor:
Mark Levine
Patented Case
View Patent ↗
Granted: Nov 2, 1999
Filed: Sep 22, 1997
Inventor
Mark Levine
Assignee (at issue)
Echlin, 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.