Patents by Inventor Pierre Gizard

Pierre Gizard 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).

  • Stopper for specimen container
    Patent number: 3974930
    Abstract: A stopper which is particularly adaptable to be mounted in an evacuated tube, for example, of the type employed in fluid collection procedures such as the sampling of blood under vacuum. The stopper is designed with a central shaft and a membrane located intermediate the ends of the central shaft. A part of the shaft above the membrane is narrowed upwardly to facilitate retention of a drop of fluid such as blood displaced from the tip of a needle as it is removed from the stopper after the collection procedure.
    Type: Grant
    Filed: April 9, 1975
    Date of Patent: August 17, 1976
    Assignee: Becton, Dickinson and Company
    Inventors: Pierre Gizard, Jean Boyer