Granted Patent
Utility
US 5,081,206 · App. 07/529,433
Trisphenol, bisphenol and halogenated bisphenol epoxy resins composition
Inventors:
Kiyomi Yasuda, Terufumi Suzuki, Toshimasa Takata, Isao Kaneko
Patented Case
View Patent ↗
Granted: Jan 14, 1992
Filed: May 29, 1990
Inventors
Kiyomi Yasuda
Terufumi Suzuki
Toshimasa Takata
Isao Kaneko
Assignee (at issue)
Mitsui Petrochemical Industries, 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.