Granted Patent
Utility
US 4,440,082 · App. 05/960,141
Electrostatically assisted printing system
Inventors:
Richard D. Carey, Bruce E. Berlin
Patented Case
View Patent ↗
Granted: Apr 3, 1984
Filed: Nov 13, 1978
Inventors
Richard D. Carey
Bruce E. Berlin
Assignee (at issue)
DayCo Holdings, LP
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.