Granted Patent
Utility
US 4,780,345 · App. 07/037,828
Mold method and apparatus for multi-color plastic shells
Inventor:
John Dixon Gray
Patented Case
View Patent ↗
Granted: Oct 25, 1988
Filed: Jun 19, 1987
Inventor
John Dixon Gray
Assignee (at issue)
Davidson Textron, INC
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.