Patents by Inventor Walter J. Marks

Walter J. Marks 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).

  • Linerless closure cap
    Patent number: 4429802
    Abstract: A one-piece molded closure cap having a cover and a depending skirt. There are container engaging means on the skirt for engaging cap engaging means on the container. There is a downwardly projecting sealing rim on the underside of the cap cover positioned for engaging the container rim. The sealing ring has a flared and curving radially inner corner sealing surface including an intermediate ring-like top scaling projection.
    Type: Grant
    Filed: May 28, 1982
    Date of Patent: February 7, 1984
    Assignee: Anchor Hocking Corporation
    Inventor: Walter J. Marks