Granted Patent
Utility
US 4,857,009 · App. 07/222,437
Fixture latching mechanism
Inventor:
Michael L. Christensen
Patented Case
View Patent ↗
Granted: Aug 15, 1989
Filed: Jul 21, 1988
Inventor
Michael L. Christensen
Assignee (at issue)
Hewlett-Packard Company, L.P.
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.