Granted Patent
Utility
US 5,659,862 · App. 08/308,553
Developer roll for electrophotographic copiers and printers, and process for manufacturing it by powder coating
Inventors:
Meftah U. Mahmud, John F. Coburn, Robert G. Schmidt
Patented Case
View Patent ↗
Granted: Aug 19, 1997
Filed: Sep 19, 1994
Inventors
Meftah U. Mahmud
John F. Coburn
Robert G. Schmidt
Assignee (at issue)
Nashua Corporation
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.