Patents by Inventor David Sarna

David Sarna 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).

  • Patent number: 4314625
    Abstract: This invention relates to an improved artists' portfolio, for the purpose of retaining and transporting sheet material such as prints or photographs, in a manner affording protection during carriage but enabling the contents to be displayed individually when required. The portfolio generally has two covers 1 and 2 joined at 3 which may be brought into juxtaposition and secured by a slide fastener 5 and flap 6 having a catch 7. The cover 1 includes a spine 10 joined with a support board 12 having a tongue X which may be positioned to engage beneath a handle 9 so as to form an "easel" structure. Transparent folders are secured to the spine 10 by rings 15. In this construction both sides of the transparent folders may be displayed by either lying on support 12 or cover 1 and the support 12 is made into a rigid structure by engagement beneath the handle. Further the folders depend from the rings when in a normal position of carriage ensuring the contents are always flat in a suspended state.
    Type: Grant
    Filed: March 27, 1980
    Date of Patent: February 9, 1982
    Assignee: A. Sarna & Son Limited
    Inventors: Abraham Sarna, David Sarna
  • Patent number: 4213520
    Abstract: This invention relates to an artists' portfolio, for the purpose of retaining and transporting sheet material such as prints or photographs, in a manner affording protection during carriage but enabling the contents to be displayed individually when required. The portfolio has two covers 1 and 2 joined at 3 which may be brought into juxtaposition and secured by a slide fastener 5 and flap 6 having a catch 7. The cover 1 includes a spine 10 joined with a support board 12 which may be positioned to engage lugs 13 so as to form an "easel" structure. Transparent folders are secured to the spine 10 by rings 15. In this construction both sides of the transparent folders may be displayed by either lying on support 12 or cover 1. Further the folders depend from the rings when in a normal position of carriage ensuring the contents are always flat in a suspended state.
    Type: Grant
    Filed: February 26, 1979
    Date of Patent: July 22, 1980
    Inventors: Abraham Sarna, David Sarna