Granted Patent
Utility
US 4,259,003 · App. 06/064,175
Imaging surface discharge and cleaning apparatus for electrophotographic copier
Inventors:
Norman F. Mangal, Ronald Swidler
Patented Case
View Patent ↗
Granted: Mar 31, 1981
Filed: Aug 6, 1979
Inventors
Norman F. Mangal
Ronald Swidler
Assignee (at issue)
Savin 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.