Granted Patent
Utility
US 6,723,207 · App. 10/212,595
Method of treating paper making rolls
Inventor:
Harold Laser
Patented Case
View Patent ↗
Granted: Apr 20, 2004
Filed: Aug 5, 2002
Inventor
Harold Laser
Assignee (at issue)
JohnsonDiversey, Inc.
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.