Granted Patent
Utility
US 4,548,895 · App. 06/586,897
Process for the production of images using a heating step prior to imaging
Inventors:
Edward Irving, Terence James Smith
Patented Case
View Patent ↗
Granted: Oct 22, 1985
Filed: Mar 7, 1984
Inventors
Edward Irving
Terence James Smith
Assignee (at issue)
Ciba-Geigy
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.