Granted Patent
Utility
US 4,912,321 · App. 07/285,344
Radiation scanning system with pupil control
Inventor:
Erwin E. Cooper
Patented Case
View Patent ↗
Granted: Mar 27, 1990
Filed: Dec 14, 1988
Inventor
Erwin E. Cooper
Assignee (at issue)
Texas Instruments Incorporated
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.