Granted Patent
Utility
US 6,133,382 · App. 09/190,143
Fiber-forming polyamide composition containing polyamide and a sulfonated polyester concentrate
Inventor:
Matthew Studholme
Patented Case
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Granted: Oct 17, 2000
Filed: Nov 12, 1998
Inventor
Matthew Studholme
Assignee (at issue)
Prisma Fibers, Inc.
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.