Granted Patent
Utility
US 4,413,103 · App. 06/352,187
Halogen-containing polycarbonate resin and process for producing same
Inventors:
Kohyama Katsuhisa, Nakamura Katsuhiko, Matsuno Akira
Patented Case
View Patent ↗
Granted: Nov 1, 1983
Filed: Feb 25, 1982
Inventors
Kohyama Katsuhisa
Nakamura Katsuhiko
Matsuno Akira
Assignee (at issue)
Mitsubishi Chemical 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.