Granted Patent
Utility
US 4,315,863 · App. 06/175,701
Highly maleated wax and process for producing the same
Inventors:
Toru Tomoshige, Harumi Furuta, Akihiro Tachi, Nobuyuki Kawamoto
Patented Case
View Patent ↗
Granted: Feb 16, 1982
Filed: Aug 6, 1980
Inventors
Toru Tomoshige
Harumi Furuta
Akihiro Tachi
Nobuyuki Kawamoto
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.