Granted Patent
Utility
US 4,198,581 · App. 05/841,966
Temperature compensating comparator
Inventor:
Adel Abdel Aziz Ahmed
Patented Case
View Patent ↗
Granted: Apr 15, 1980
Filed: Oct 13, 1977
Inventor
Adel Abdel Aziz Ahmed
Assignee (at issue)
RCA 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.