Granted Patent
Utility
US 4,231,076 · App. 05/945,981
Tantalum foil capacitor with strong acid electrolyte
Inventors:
Mark Markarian, Kenneth B. Meyer
Patented Case
View Patent ↗
Granted: Oct 28, 1980
Filed: Sep 27, 1978
Inventors
Mark Markarian
Kenneth B. Meyer
Assignee (at issue)
Sprague Electric Company
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.