Patents by Inventor Rene Emile Leon Barre

Rene Emile Leon Barre 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).

  • Device for watertight stoppering of bottles
    Patent number: 4108325
    Abstract: A watertight device for stoppering a bottle, in which a ring, made of flexible matter, is located in a groove or grooves of the stopper stem, the groove or grooves being formed partly with a notched surface, and partly with a smooth and circular external surface. The ring has corresponding mating, notched and smooth surfaces.
    Type: Grant
    Filed: October 3, 1977
    Date of Patent: August 22, 1978
    Inventor: Rene Emile Leon Barre