Granted Patent
Utility
US 5,931,178 · App. 08/618,319
High-speed water jet blocker
Inventors:
Craig E. Pfarr, Norman A. Rudy, Darren P. Wattles
Patented Case
View Patent ↗
Granted: Aug 3, 1999
Filed: Mar 19, 1996
Inventors
Craig E. Pfarr
Norman A. Rudy
Darren P. Wattles
Assignee (at issue)
DESIGNS SYSTEMS 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.