Granted Patent
Utility
US 4,356,138 · App. 06/225,288
Production of high strength polyethylene filaments
Inventors:
Sheldon Kavesh, Dusan C. Prevorsek, Donald G. J. Wang
Patented Case
View Patent ↗
Granted: Oct 26, 1982
Filed: Jan 15, 1981
Inventors
Sheldon Kavesh
Dusan C. Prevorsek
Donald G. J. Wang
Assignee (at issue)
ALLIED CONSULTING, 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.