Granted Patent
Utility
US 4,239,557 · App. 05/868,693
Thermally stable sintered porous metal articles
Inventors:
Edward L. Thellmann, Anton L. Gombach
Patented Case
View Patent ↗
Granted: Dec 16, 1980
Filed: Jan 11, 1978
Inventors
Edward L. Thellmann
Anton L. Gombach
Assignee (at issue)
Gould Inc.
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.