Patents by Inventor Mark Joseph Greenstein

Mark Joseph Greenstein 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).

  • Publication number: 20030024960
    Abstract: A portable container in the form of a knapsack having a soft-sided wall structure, a bottom portion and an upwardly extending wall adjoining the bottom portion. The bottom portion and the upwardly extending wall co-operate to define a chamber therewithin. Strapping is mounted to the front portion to permit the knapsack to be carried on a person's back. A receptacle is mounted to the upwardly extending wall and extends at least partially inwardly of the upwardly extending wall relative to the chamber. The receptacle has an insulated wall member and an externally accessible closure member permitting access to objects in the receptacle.
    Type: Application
    Filed: August 22, 2001
    Publication date: February 6, 2003
    Inventors: Mark Joseph Greenstein, Melvin S. Mogil