Granted Patent
Utility
US 5,552,494 · App. 08/361,489
Quality control method for ABS-based resin and molding of the ABS-based resin
Inventors:
Mune Iwamoto, Akihiko Nakajima, Masato Takaku, Hisao Morita, Toshihiko Ando, Tomofumi Shirafuji, Mutsuko Uchida
Patented Case
View Patent ↗
Granted: Sep 3, 1996
Filed: Dec 22, 1994
Inventors
Mune Iwamoto
Akihiko Nakajima
Masato Takaku
Hisao Morita
Toshihiko Ando
Tomofumi Shirafuji
Mutsuko Uchida
Assignee (at issue)
Mitsui Toatsu Chemicals, Incorporated
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.