Granted Patent
Utility
US 5,404,697 · App. 08/128,302
Rotatable machinery system having anti-wrap washer
Inventor:
Robert A. Dewey
Patented Case
View Patent ↗
Granted: Apr 11, 1995
Filed: Sep 28, 1993
Inventor
Robert A. Dewey
Assignee (at issue)
Woods Equipment Company
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.