Granted Patent
Utility
US 5,141,064 · App. 07/692,191
Liquid damping mechanism employing an adjustable shear plate
Inventors:
Donald J. Willemsen, John E. Uber, Steven Del Rosso
Patented Case
View Patent ↗
Granted: Aug 25, 1992
Filed: Apr 26, 1991
Inventors
Donald J. Willemsen
John E. Uber
Steven Del Rosso
Assignee (at issue)
Hi-Speed Checkweigher Co., 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.