Patents by Inventor Cheh Wang

Cheh Wang has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Assembly of two interconnected similar plastic planks and a framework
    Patent number: 4790112
    Abstract: An improved assembly includes a framwork, two interconnected similar plastic planks, and a fastener for attaching the planks to the framework. The improvement wherein each of the planks includes an L-shaped outwardly projecting plate and a first abutment portion on a side thereof, and a U-shaped projecting plate and a second abutment portion on the opposite side thereof. The L-shaped projecting plate can be held within and on the U-shaped projecting plate to provide a water-proof effect when the planks are interconnected side by side. A U-shaped cover is sleeved on the U-shaped projecting plate so as to provide an additional water-proof effect.
    Type: Grant
    Filed: July 17, 1987
    Date of Patent: December 13, 1988
    Inventor: Cheh Wang