Granted Patent
Utility
US 5,651,812 · App. 08/461,486
Agent for treatment of paper machine press section felts and its use
Inventors:
Michael Anthony McDermott, Jurgen Friedrich Schuetz
Patented Case
View Patent ↗
Granted: Jul 29, 1997
Filed: Jun 5, 1995
Inventors
Michael Anthony McDermott
Jurgen Friedrich Schuetz
Assignee (at issue)
Betzdearborn, 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.