IP Library Granted Patent US 4,160,909
Granted Patent Utility
US 4,160,909 · App. 05/819,578

X-ray tube arrangements

Inventor: Robert J. Froggatt
Patented Case View Patent ↗
Granted: Jul 10, 1979 Filed: Jul 27, 1977
Inventor
Robert J. Froggatt
Assignee (at issue)
EMI, LLC

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.

Order Certified Copies
Most orders are placed with the USPTO same day — all within 24 business hours.
Order via The Patent Place →
Pre-filled with this patent's details
Quick Facts
Patent No.
US 4,160,909
App. No.
05/819,578
Filed
1977-07-27
Granted
1979-07-10
Kind
A