Granted Patent
Utility
US 5,833,893 · App. 08/811,061
Methods of making different additive-containing filaments
Inventors:
Frank R. Jones, Stanley A. McIntosh, Gary W. Shore, Karl H. Buchanan, David B. Ledford, Wayne S. Stanko, G. Daniel Gasperson, Charles F. Helms, Jr.
Patented Case
View Patent ↗
Granted: Nov 10, 1998
Filed: Mar 3, 1997
Inventors
Frank R. Jones
Stanley A. McIntosh
Gary W. Shore
Karl H. Buchanan
David B. Ledford
Wayne S. Stanko
G. Daniel Gasperson
Charles F. Helms, Jr.
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.