Granted Patent
Utility
US 5,791,376 · App. 08/649,056
Quick disconnect valve system for abrasive slurries
Inventor:
Curtis Lee Richmond
Patented Case
View Patent ↗
Granted: Aug 11, 1998
Filed: May 16, 1996
Inventor
Curtis Lee Richmond
Assignee (at issue)
MEGA Systems & Chemicals, 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.