Granted Patent
Utility
US 4,913,224 · App. 07/335,842
Chill roll
Inventor:
Kenneth Moran
Patented Case
View Patent ↗
Granted: Apr 3, 1990
Filed: Apr 10, 1989
Inventor
Kenneth Moran
Assignee (at issue)
W.R. Grace & Co. Conn.
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.