Granted Patent
Utility
US 4,471,837 · App. 06/335,156
Graphite heat-sink mountings
Inventor:
Ralph I. Larson
Patented Case
View Patent ↗
Granted: Sep 18, 1984
Filed: Dec 28, 1981
Inventor
Ralph I. Larson
Assignee (at issue)
Aavid Engineering, 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.