IP Library Granted Patent US 4,617,939
Granted Patent Utility
US 4,617,939 · App. 06/745,291

Tomography

Inventors: Brian Brown, David C. Barber, Ian Leslie Freeston
Patented Case View Patent ↗
Granted: Oct 21, 1986 Filed: Jun 14, 1985
Inventors
Brian Brown
David C. Barber
Ian Leslie Freeston
Assignee (at issue)
The University of Sheffield

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 4,617,939
App. No.
06/745,291
Filed
1985-06-14
Granted
1986-10-21
Kind
A