Granted Patent
Utility
US 4,607,685 · App. 06/628,225
Heat sink for integrated circuit package
Inventor:
John Mitchell
Patented Case
View Patent ↗
Granted: Aug 26, 1986
Filed: Jul 6, 1984
Inventor
John Mitchell
Assignee (at issue)
Burroughs, 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.