Patents by Inventor Steven Gordon Robertson

Steven Gordon Robertson 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).

  • Closure with sealing insert
    Patent number: 8424706
    Abstract: A closure (1) having a shell (10) and a polymer insert (20). The polymer material of the insert (20) is selected to be sufficiently soft to provide an adequate sealing surface (21) and yet sufficiently stiff to define legs (22), which clip behind the internal curl (11) of the closure shell (10).
    Type: Grant
    Filed: September 26, 2007
    Date of Patent: April 23, 2013
    Assignee: Crown Packaging Technology, Inc.
    Inventors: Steven Gordon Robertson, Keith West
  • CLOSURE WITH SEALING INSERT
    Publication number: 20100006574
    Abstract: A closure (1) having a shell (10) and a polymer insert (20). The polymer material of the insert (20) is selected to be sufficiently soft to provide an adequate sealing surface (21) and yet sufficiently stiff to define legs (22), which clip behind the internal curl (11) of the closure shell (10).
    Type: Application
    Filed: September 26, 2007
    Publication date: January 14, 2010
    Applicant: Crown Packaging Technology, Inc.
    Inventors: Steven Gordon Robertson, Keith West