Granted Patent
Utility
US 6,142,744 · App. 09/321,187
Pumping system and method for multiple liquids
Inventor:
Ken Taylor
Patented Case
View Patent ↗
Granted: Nov 7, 2000
Filed: May 27, 1999
Inventor
Ken Taylor
Assignee (at issue)
Dresser Equipment Group, 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.