Granted Patent
Utility
US 5,220,200 · App. 07/734,706
Provision of substrate pillars to maintain chip standoff
Inventor:
James A. Blanton
Patented Case
View Patent ↗
Granted: Jun 15, 1993
Filed: Jul 23, 1991
Inventor
James A. Blanton
Assignee (at issue)
DELCO ELECTRONICS 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.