Granted Patent
Utility
US 4,679,060 · App. 06/675,664
Ionic print cartridge and printer
Inventors:
Robert McCallum, Paul E. Plasschaert, Dolf Landheer, Hemant Gandhi
Patented Case
View Patent ↗
Granted: Jul 7, 1987
Filed: Nov 28, 1984
Inventors
Robert McCallum
Paul E. Plasschaert
Dolf Landheer
Hemant Gandhi
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.