Granted Patent
Utility
US 5,263,845 · App. 07/967,002
Spinnerette plate for the manufacture of multilobal fibers with projections on each lobe
Inventor:
Elbert K. Warren
Patented Case
View Patent ↗
Granted: Nov 23, 1993
Filed: Oct 27, 1992
Inventor
Elbert K. Warren
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.