Patents by Inventor Cornelis Killestijn

Cornelis Killestijn 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).

  • Closing device for a holder and diaphragm for such a device
    Patent number: 4798302
    Abstract: A deformable holder is safeguarded against visible implosion by a diaphragm between cover and holder. The space between diaphragm and cover is in contact with the atmosphere via passages between diaphragm and cover, while the holder is hermetically closed off from the outer air by the diaphragm.
    Type: Grant
    Filed: March 28, 1988
    Date of Patent: January 17, 1989
    Assignee: Skillpack B.V.
    Inventor: Cornelis Killestijn