Granted Patent
Utility
US 4,692,017 · App. 06/812,027
Toner transfer apparatus
Inventors:
Andrzej Maczuszenko, Sotos M. Theodoulou, John R. Rumsey
Patented Case
View Patent ↗
Granted: Sep 8, 1987
Filed: Dec 23, 1985
Inventors
Andrzej Maczuszenko
Sotos M. Theodoulou
John R. Rumsey
Assignee (at issue)
Delphax Systems
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.