Granted Patent
Utility
US 5,370,833 · App. 08/097,121
Process of making fibers which give off troublesome gases and/or vapors during spinning
Inventors:
Herbert Wellenhofer, Gerhard Leumer, Andreas Fischer, Diethelm Rabe, Hans-Jurgen Profe
Patented Case
View Patent ↗
Granted: Dec 6, 1994
Filed: Jul 26, 1993
Inventors
Herbert Wellenhofer
Gerhard Leumer
Andreas Fischer
Diethelm Rabe
Hans-Jurgen Profe
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.