Granted Patent
Utility
US 4,280,263 · App. 06/007,263
Heat fuser roll and method of manufacture
Inventors:
Homer B. Dean, Ballard T. Mahurin
Patented Case
View Patent ↗
Granted: Jul 28, 1981
Filed: Jan 29, 1979
Inventors
Homer B. Dean
Ballard T. Mahurin
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.