Granted Patent
Utility
US 4,889,991 · App. 07/248,816
Gamma radiation detector with enhanced signal treatment
Inventors:
Raymond C. Ramsey, Marlin O. Thurston
Patented Case
View Patent ↗
Granted: Dec 26, 1989
Filed: Sep 23, 1988
Inventors
Raymond C. Ramsey
Marlin O. Thurston
Assignee (at issue)
NEOPROBE CORPORATION
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.