Granted Patent
Utility
US 5,089,749 · App. 07/647,448
Method and apparatus for measuring output of a heat lamp for an optical TLD reader
Inventor:
Richard Cadogan
Patented Case
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Granted: Feb 18, 1992
Filed: Jan 28, 1991
Inventor
Richard Cadogan
Assignee (at issue)
Commonwealth Edison Company
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.