Granted Patent
Utility
US 4,884,331 · App. 07/262,695
Method of manufacturing heat sink apparatus
Inventor:
Howard G. Hinshaw
Patented Case
View Patent ↗
Granted: Dec 5, 1989
Filed: Oct 26, 1988
Inventor
Howard G. Hinshaw
Assignee (at issue)
Thermalloy, 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.