Granted Patent
Utility
US 6,703,092 · App. 09/674,745
Resin molded article for chamber liner
Inventors:
Shinichi Nakagawa, Shuji Sakai
Patented Case
View Patent ↗
Granted: Mar 9, 2004
Filed: Nov 2, 2000
Inventors
Shinichi Nakagawa
Shuji Sakai
Assignee (at issue)
E.I. DU PONT DE NEMOURS AND COMPANY
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.