Granted Patent
Utility
US 4,964,148 · App. 07/273,553
Air cooled metal ceramic x-ray tube construction
Inventors:
Heinrich F. Klostermann, Martin Braun
Patented Case
View Patent ↗
Granted: Oct 16, 1990
Filed: Nov 21, 1988
Inventors
Heinrich F. Klostermann
Martin Braun
Assignee (at issue)
Meicor, 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.