Granted Patent
Utility
US 4,580,749 · App. 06/544,594
Support column unit
Inventor:
Timothy L. Howard
Patented Case
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Granted: Apr 8, 1986
Filed: Oct 24, 1983
Inventor
Timothy L. Howard
Assignee (at issue)
Gas Spring Company, Div. of Fichtel & Sachs Industries, 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.