Granted Patent
Utility
US 6,331,333 · App. 09/153,943
Storage stabilized oxygen degradable polymer
Inventors:
Chi-San Wu, Laurence Senak, Donna Osborne, James F. Curry, Charles B. Schriver, Irwin B. Silverstein
Patented Case
View Patent ↗
Granted: Dec 18, 2001
Filed: Sep 16, 1998
Inventors
Chi-San Wu
Laurence Senak
Donna Osborne
James F. Curry
Charles B. Schriver
Irwin B. Silverstein
Assignee (at issue)
ISP INVESTMENTS LLC
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.