Granted Patent
Utility
US 4,739,722 · App. 07/001,811
Laminate structure and boat hull made therefrom
Inventor:
Keith L. Rogstad
Patented Case
View Patent ↗
Granted: Apr 26, 1988
Filed: Jan 8, 1987
Inventor
Keith L. Rogstad
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.