Granted Patent
Utility
US 5,596,033 · App. 08/466,519
Gas fade resistant stabilizer system for polypropylene fiber
Inventors:
Douglas W. Horsey, Ramanathan Ravichandran
Patented Case
View Patent ↗
Granted: Jan 21, 1997
Filed: Jun 6, 1995
Inventors
Douglas W. Horsey
Ramanathan Ravichandran
Assignee (at issue)
Ciba-Geigy
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.