Granted Patent
Utility
US 4,082,688 · App. 05/697,586
Process for producing microcapsules
Inventors:
Setsuya Egawa, Masahiro Sakamoto, Toshihiko Matsushita
Patented Case
View Patent ↗
Granted: Apr 4, 1978
Filed: Jun 18, 1976
Inventors
Setsuya Egawa
Masahiro Sakamoto
Toshihiko Matsushita
Assignee (at issue)
NCR Corporation
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.