Granted Patent
Utility
US 5,400,823 · App. 08/153,787
Viscous fluid shear clutches and control valves therefor
Inventor:
Arthur E. H. Elmer
Patented Case
View Patent ↗
Granted: Mar 28, 1995
Filed: Nov 17, 1993
Inventor
Arthur E. H. Elmer
Assignee (at issue)
KYSOR INDUSTRIAL 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.