Granted Patent
Utility
US 5,014,543 · App. 07/219,204
Leak detector
Inventors:
Charles C. Franklin, Edward T. Gisske
Patented Case
View Patent ↗
Granted: May 14, 1991
Filed: Jul 14, 1988
Inventors
Charles C. Franklin
Edward T. Gisske
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.