Granted Patent
Utility
US 4,035,812 · App. 05/704,569
Ink jet recorder and charge ring plate therefor with reduced deplating current
Inventors:
Bertram Van Breemen, John A. Robertson
Patented Case
View Patent ↗
Granted: Jul 12, 1977
Filed: Jul 12, 1976
Inventors
Bertram Van Breemen
John A. Robertson
Assignee (at issue)
The Mead 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.