Granted Patent
Utility
US 5,366,813 · App. 08/057,921
Temperature coefficient of resistance controlling films
Inventor:
Carl W. Berlin
Patented Case
View Patent ↗
Granted: Nov 22, 1994
Filed: May 7, 1993
Inventor
Carl W. Berlin
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.