Granted Patent
Utility
US 4,065,544 · App. 05/481,321
Finely divided metal oxides and sintered objects therefrom
Inventors:
Bernard H. Hamling, Alfred W. Naumann
Patented Case
View Patent ↗
Granted: Dec 27, 1977
Filed: Jun 20, 1974
Inventors
Bernard H. Hamling
Alfred W. Naumann
Assignee (at issue)
Union Carbide 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.