Granted Patent
Utility
US 5,283,314 · App. 08/029,978
Process for the production of a branched polycarbonate with emulsion having interfacial area
Inventors:
Shigeki Kuze, Hideo Kusuyama, Masayuki Shinohara, Masaya Okamoto
Patented Case
View Patent ↗
Granted: Feb 1, 1994
Filed: Mar 12, 1993
Inventors
Shigeki Kuze
Hideo Kusuyama
Masayuki Shinohara
Masaya Okamoto
Assignee (at issue)
Idemitsu Petrochemical 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.