Granted Patent
Utility
US 5,392,803 · App. 07/978,575
Apparatus and method for installing valves
Inventor:
Douglas A. Bruce
Patented Case
View Patent ↗
Granted: Feb 28, 1995
Filed: Nov 19, 1992
Inventor
Douglas A. Bruce
Assignee (at issue)
CMB Industries, 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.