Granted Patent
Utility
US 5,609,553 · App. 08/237,485
Ceramic roller for ESA printing and coating
Inventor:
Bruce E. Hyllberg
Patented Case
View Patent ↗
Granted: Mar 11, 1997
Filed: May 3, 1994
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.