Granted Patent
Utility
US 4,496,643 · App. 06/592,996
Two-component dry electrostatic developer composition containing onium charge control agent
Inventors:
John C. Wilson, Lawrence P. DeMejo, Thomas A. Jadwin, Stewart H. Merrill
Patented Case
View Patent ↗
Granted: Jan 29, 1985
Filed: Mar 23, 1984
Inventors
John C. Wilson
Lawrence P. DeMejo
Thomas A. Jadwin
Stewart H. Merrill
Assignee (at issue)
EASTMAN KODAK 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.