Granted Patent
Utility
US 6,264,775 · App. 09/219,166
Face-up coating of carpet backs with polyurethane
Inventors:
Ulrich Holeschovsky, Jeffrey L. Robbins, Harry Stefanou, Leah Langsdorf, David Gibala, Robert R. Pollock
Patented Case
View Patent ↗
Granted: Jul 24, 2001
Filed: Dec 22, 1998
Inventors
Ulrich Holeschovsky
Jeffrey L. Robbins
Harry Stefanou
Leah Langsdorf
David Gibala
Robert R. Pollock
Assignee (at issue)
Bayer Antwerpen
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.