Granted Patent
Utility
US 4,746,467 · App. 06/873,585
Process for producing microcapsules
Inventors:
Masahiro Sakamoto, Sadao Takahashi
Patented Case
View Patent ↗
Granted: May 24, 1988
Filed: Jun 12, 1986
Inventors
Masahiro Sakamoto
Sadao Takahashi
Assignee (at issue)
Jujo Paper Co., Ltd.
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.