Granted Patent
Utility
US 5,525,686 · App. 08/357,164
Polyvalent metal salt of salicyclic acid resin and process for preparing it
Inventors:
Yoshimitsu Tanabe, Jotaro Kida, Kiyoharu Hasegawa, Masakatsu Nakatsuka, Masayuki Furuya, Takeshi Nishimura
Patented Case
View Patent ↗
Granted: Jun 11, 1996
Filed: Dec 13, 1994
Inventors
Yoshimitsu Tanabe
Jotaro Kida
Kiyoharu Hasegawa
Masakatsu Nakatsuka
Masayuki Furuya
Takeshi Nishimura
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.