Granted Patent
Utility
US 6,602,938 · App. 09/958,630
Fire-resistant polycarbonate resin composition
Inventors:
Masatoshi Iji, Shin Serizawa, Satoshi Umeyama, Tadashi Shinomiya, Ichiro Sato
Patented Case
View Patent ↗
Granted: Aug 5, 2003
Filed: Oct 11, 2001
Inventors
Masatoshi Iji
Shin Serizawa
Satoshi Umeyama
Tadashi Shinomiya
Ichiro Sato
Assignees (at issue)
Sumitomo Dow Limited
NEC 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.