Granted Patent
Utility
US 4,732,809 · App. 07/014,074
Bicomponent fiber and nonwovens made therefrom
Inventors:
Robert D. Harris, James P. Parker, Charles L. King
Patented Case
View Patent ↗
Granted: Mar 22, 1988
Filed: Jan 30, 1987
Inventors
Robert D. Harris
James P. Parker
Charles L. King
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.