Granted Patent
Utility
US 4,890,995 · App. 07/332,019
Mold apparatus for forming shaped plastic shells
Inventor:
John Dixon Gray
Patented Case
View Patent ↗
Granted: Jan 2, 1990
Filed: Mar 30, 1989
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.