Granted Patent
Utility
US 5,186,199 · App. 07/790,655
Conduit stopper
Inventors:
Kevin Patrick Murphy, Garland Y. Smith
Patented Case
View Patent ↗
Granted: Feb 16, 1993
Filed: Nov 8, 1991
Inventors
Kevin Patrick Murphy
Garland Y. Smith
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.