Granted Patent
Utility
US 5,403,123 · App. 07/921,237
Gas impermeable, elastically deformable laminate and inflatable articles formed therefrom
Inventor:
William D. Walters
Patented Case
View Patent ↗
Granted: Apr 4, 1995
Filed: Jul 29, 1992
Inventor
William D. Walters
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.