Granted Patent
Utility
US 4,236,927 · App. 05/936,929
Method for the manufacture of iron-containing sintered electrodes
Inventors:
Horst Buhl, Manfred A. Gutjahr
Patented Case
View Patent ↗
Granted: Dec 2, 1980
Filed: Aug 25, 1978
Inventors
Horst Buhl
Manfred A. Gutjahr
Assignee (at issue)
Daimler-Benz AG
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.