Granted Patent
Utility
US 5,493,023 · App. 08/160,174
Granular melamine cyanurate and preparation process thereof
Inventors:
Kazuo Wakimura, Tetsuo Yoshiyama, Hiroshi Kato, Yuri Kawano
Patented Case
View Patent ↗
Granted: Feb 20, 1996
Filed: Dec 2, 1993
Inventors
Kazuo Wakimura
Tetsuo Yoshiyama
Hiroshi Kato
Yuri Kawano
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.