Granted Patent
Utility
US 5,386,967 · App. 08/080,281
Ball valve coupling
Inventors:
Dan O. Enniss, Robert E. Gooch, Stephen R. Chipman
Patented Case
View Patent ↗
Granted: Feb 7, 1995
Filed: Jun 21, 1993
Inventors
Dan O. Enniss
Robert E. Gooch
Stephen R. Chipman
Assignee (at issue)
Valtek, 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.