Granted Patent
Utility
US 6,646,087 · App. 09/983,857
Method of manufacturing ethylene-vinyl acetate copolymer
Inventor:
Yoshiharu Nagao
Patented Case
View Patent ↗
Granted: Nov 11, 2003
Filed: Oct 26, 2001
Inventor
Yoshiharu Nagao
Assignee (at issue)
THE NIPPON SYNTHETIC CHEMICAL INDUSTRY CO., LTD.
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.