Granted Patent
Utility
US 4,894,894 · App. 07/243,170
Continuous high speed method for making a commingled carpet yarn
Inventors:
Andrew M. Coons, III, James P. Sullivan
Patented Case
View Patent ↗
Granted: Jan 23, 1990
Filed: Sep 8, 1988
Inventors
Andrew M. Coons, III
James P. Sullivan
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.