Granted Patent
Utility
US 5,789,813 · App. 08/724,076
Ball grid array package with inexpensive threaded secure locking mechanism to allow removal of a threaded heat sink therefrom
Inventors:
Janet Kirkland, Mark R. Schneider
Patented Case
View Patent ↗
Granted: Aug 4, 1998
Filed: Sep 30, 1996
Inventors
Janet Kirkland
Mark R. Schneider
Assignee (at issue)
LSI Logic Corporation
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.