Granted Patent
Utility
US 5,948,528 · App. 08/980,232
Process for modifying synthetic bicomponent fiber cross-sections and bicomponent fibers thereby produced
Inventors:
Charles F. Helms, Jr., Otto M. Ilg, Diane R. Kent, Matthew B. Hoyt, John A. Hodan
Patented Case
View Patent ↗
Granted: Sep 7, 1999
Filed: Nov 28, 1997
Inventors
Charles F. Helms, Jr.
Otto M. Ilg
Diane R. Kent
Matthew B. Hoyt
John A. Hodan
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.