Granted Patent
Utility
US 4,284,701 · App. 06/183,701
Electrophotographic toner of specific size distribution
Inventors:
Jerry J. Abbott, Sterritt R. Fuller, Jr., Paul D. Jachimiak
Patented Case
View Patent ↗
Granted: Aug 18, 1981
Filed: Sep 3, 1980
Inventors
Jerry J. Abbott
Sterritt R. Fuller, Jr.
Paul D. Jachimiak
Assignee (at issue)
International Business Machines 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.