Granted Patent
Utility
US 6,360,922 · App. 09/560,496
Pump assembly with pressure release capability
Inventor:
Ronald F. Englhard
Patented Case
View Patent ↗
Granted: Mar 26, 2002
Filed: Apr 27, 2000
Inventor
Ronald F. Englhard
Assignee (at issue)
Hayes Products, LLC.
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.