Granted Patent
Utility
US 6,432,549 · App. 09/141,052
Curl-resistant, antislip abrasive backing and paper
Inventor:
Francis Joseph Kronzer
Patented Case
View Patent ↗
Granted: Aug 13, 2002
Filed: Aug 27, 1998
Inventor
Francis Joseph Kronzer
Assignee (at issue)
Kimberly-Clark Worldwide, 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.