IP Library Granted Patent US 4,852,140
Granted Patent Utility
US 4,852,140 · App. 07/061,906

X-ray tube bearing arc suppressor

Inventor: Mark Dax
Patented Case View Patent ↗
Granted: Jul 25, 1989 Filed: Jun 11, 1987
Inventor
Mark Dax
Assignee (at issue)
Siemens Medical Systems,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.

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Quick Facts
Patent No.
US 4,852,140
App. No.
07/061,906
Filed
1987-06-11
Granted
1989-07-25
Kind
A