Granted Patent
Utility
US 5,616,263 · App. 08/541,569
Ceramic heater roller
Inventor:
Bruce E. Hyllberg
Patented Case
View Patent ↗
Granted: Apr 1, 1997
Filed: Oct 10, 1995
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.