Granted Patent
Utility
US 5,869,808 · App. 08/702,413
Ceramic heater roller and methods of making same
Inventor:
Bruce E. Hyllberg
Patented Case
View Patent ↗
Granted: Feb 9, 1999
Filed: Aug 14, 1996
Inventor
Bruce E. Hyllberg
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.