Granted Patent
Utility
US 4,226,899 · App. 05/935,307
Method for fabricating controlled TCR thin film resistors
Inventors:
Ronald A. Thiel, Edward H. Maurer
Patented Case
View Patent ↗
Granted: Oct 7, 1980
Filed: Aug 21, 1978
Inventors
Ronald A. Thiel
Edward H. Maurer
Assignee (at issue)
General Dynamics Corporation, Electronics Division
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.