Granted Patent
Utility
US 4,910,067 · App. 07/383,809
Thermoplastic/foam core/fiber-reinforced resin structural composite material, a process for making said material and a boat structure made from said material
Inventor:
Michael O'Neill
Patented Case
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Granted: Mar 20, 1990
Filed: Jul 21, 1989
Inventor
Michael O'Neill
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.