Patents by Inventor Margaret R. Weiss

Margaret R. Weiss 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).

  • Portable environmental chamber
    Patent number: 4210073
    Abstract: The present invention relates to a portable environmental chamber comprising a tent-like structure having an integral heating means associated therewith. More specifically, it relates to a collapsible food preparation and processing device having a combination heat retaining foldable closure and a heating means for providing a predetermined temperature within said closure, the heating means integrally associated with the closure means.
    Type: Grant
    Filed: December 26, 1978
    Date of Patent: July 1, 1980
    Inventor: Margaret R. Weiss