Granted Patent
Utility
US 5,148,586 · App. 07/650,743
Crimped continuous filament yarn with color-point heather appearance
Inventor:
Andrew M. Coons, III
Patented Case
View Patent ↗
Granted: Sep 22, 1992
Filed: Feb 5, 1991
Inventor
Andrew M. Coons, III
Assignee (at issue)
BASF SE
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.