Granted Patent
Utility
US 6,624,117 · App. 09/868,105
Heat sensitive recording material
Inventors:
Michael Heneghan, Roy Alan Kirk, James Taylor, John Whitworth, Robert M. O'Neil, John Barry Henshall
Patented Case
View Patent ↗
Granted: Sep 23, 2003
Filed: Oct 1, 2001
Inventors
Michael Heneghan
Roy Alan Kirk
James Taylor
John Whitworth
Robert M. O'Neil
John Barry Henshall
Assignee (at issue)
Ciba Specialty Chemicals 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.