Granted Patent
Utility
US 6,450,777 · App. 09/761,911
Fluid pumping apparatus
Inventors:
William Harry Lynn, Ross Christiansen
Patented Case
View Patent ↗
Granted: Sep 17, 2002
Filed: Jan 17, 2001
Inventors
William Harry Lynn
Ross Christiansen
Assignee (at issue)
THOMAS 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.