Granted Patent
Utility
US 4,602,263 · App. 06/646,771
Thermal imaging method
Inventors:
Alan L. Borror, Ernest W. Ellis, Donald A. McGowan
Patented Case
View Patent ↗
Granted: Jul 22, 1986
Filed: Sep 4, 1984
Inventors
Alan L. Borror
Ernest W. Ellis
Donald A. McGowan
Assignee (at issue)
Polaroid 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.