Granted Patent
Utility
US 5,518,813 · App. 08/346,405
Poly (1,4-cyclohexanedimethylene terephthalate) multifilament yarns for technical applications and production thereof
Inventor:
Gerhard Leumer
Patented Case
View Patent ↗
Granted: May 21, 1996
Filed: Nov 29, 1994
Inventor
Gerhard Leumer
Assignee (at issue)
Hoechst GmbH
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.