Granted Patent
Utility
US 6,426,141 · App. 09/360,312
High-speed false-twist texturing process
Inventors:
Raymond Mathis, Norbert Bialas, Andreas Lippman
Patented Case
View Patent ↗
Granted: Jul 30, 2002
Filed: Jul 23, 1999
Inventors
Raymond Mathis
Norbert Bialas
Andreas Lippman
Assignee (at issue)
Cognis Deutschland GmbH & Co. KG
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.