Granted Patent
Utility
US 5,437,953 · App. 08/210,208
Dye-polymer toners for electrophotography
Inventors:
Dale D. Russell, James C. Bearss
Patented Case
View Patent ↗
Granted: Aug 1, 1995
Filed: Mar 18, 1994
Inventors
Dale D. Russell
James C. Bearss
Assignee (at issue)
Hewlett-Packard Company, L.P.
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.