Granted Patent
Utility
US 4,547,449 · App. 06/691,799
Liquid electrographic developers containing quaternary ammonium charge-control polymers having acidic monomers
Inventors:
Peter S. Alexandrovich, Louis J. Sorriero, Chandra Sreekumar
Patented Case
View Patent ↗
Granted: Oct 15, 1985
Filed: Jan 16, 1985
Inventors
Peter S. Alexandrovich
Louis J. Sorriero
Chandra Sreekumar
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.