Granted Patent
Utility
US 4,348,349 · App. 06/192,701
Method for reducing melt fracture during extrusion of a molten narrow molecular weight distribution, linear, ethylene copolymer
Inventor:
Stuart J. Kurtz
Patented Case
View Patent ↗
Granted: Sep 7, 1982
Filed: Oct 1, 1980
Inventor
Stuart J. Kurtz
Assignee (at issue)
Union Carbide Corporation
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.