Granted Patent
Utility
US 4,237,037 · App. 06/026,699
Powder coating composition composed of ethylene resin mixture and hydrocarbon wax
Inventor:
Takao Takahashi
Patented Case
View Patent ↗
Granted: Dec 2, 1980
Filed: Apr 3, 1979
Inventor
Takao Takahashi
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.