Granted Patent
Utility
US 5,420,395 · App. 08/084,650
Ceramic heater roller with zone heating
Inventors:
Bruce E. Hyllberg, Robert G. Langley
Patented Case
View Patent ↗
Granted: May 30, 1995
Filed: Jun 28, 1993
Inventors
Bruce E. Hyllberg
Robert G. Langley
Assignee (at issue)
American Roller Company, LLC
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.