Granted Patent
Utility
US 4,879,891 · App. 07/361,484
Method of manufacturing heat sink apparatus
Inventor:
Howard G. Hinshaw
Patented Case
View Patent ↗
Granted: Nov 14, 1989
Filed: Jun 5, 1989
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.