Granted Patent
Utility
US 6,153,138 · App. 09/288,185
Process for modifying synthetic bicomponent fiber cross-sections
Inventors:
Charles F. Helms, Jr., Otto M. Ilg, Diane R. Kent, Matthew B. Hoyt, John A. Hodan
Patented Case
View Patent ↗
Granted: Nov 28, 2000
Filed: Apr 8, 1999
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.