Granted Patent
Utility
US 5,494,414 · App. 08/348,626
Vertical shaft pressure washer coupling assembly
Inventors:
Eric E. Steinhart, Daniel C. Ertl
Patented Case
View Patent ↗
Granted: Feb 27, 1996
Filed: Dec 2, 1994
Inventors
Eric E. Steinhart
Daniel C. Ertl
Assignee (at issue)
MI-T-M Corporation
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.