Granted Patent
Utility
US 4,574,110 · App. 06/633,960
Process for producing microcapsules and microcapsule slurry
Inventors:
Makoto Asano, Kiyoharu Hasegawa, Yukio Tamura, Yoshihiro Oono
Patented Case
View Patent ↗
Granted: Mar 4, 1986
Filed: Jul 24, 1984
Inventors
Makoto Asano
Kiyoharu Hasegawa
Yukio Tamura
Yoshihiro Oono
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.