Granted Patent
Utility
US 4,590,263 · App. 06/428,455
High speed diazonium salts useful in diazo type photoreproduction
Inventors:
Robert C. Desjarlais, Everett W. Bennett
Patented Case
View Patent ↗
Granted: May 20, 1986
Filed: Sep 30, 1982
Inventors
Robert C. Desjarlais
Everett W. Bennett
Assignee (at issue)
James River Graphics Limited
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.