Patents by Inventor Ratko Spasojevic

Ratko Spasojevic 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: 4270319
    Abstract: A mobile vending booth of the sort having a vending opening on at least one long-side and having a chassis floor, is equipped with at least one roller shutter for shutting off at least the vending opening. Furthermore, there is a roller shutter guideframe able to be pushed slippingly into the booth and for making it broader for an operation condition, the guideframe running along the full length of the long-side of the booth and being able to be pulled out.
    Type: Grant
    Filed: October 22, 1978
    Date of Patent: June 2, 1981
    Inventor: Ratko Spasojevic
  • Patent number: 4250959
    Abstract: An upwardly open chest has a hinged lid, and oppositely movable roller blinds to close an upper compartment in which food can be cooked, or stored at normal refrigerator temperatures. A steam rod support structure slides parallel the lid's hinge line for selectively cooking food in this compartment, and front doors provide access to a frozen food storage compartment. Conventional steam cooking and refrigeration cycle components circulate cooling or heating fluid to coils or moist steam outlet pipes in certain compartments selectively.
    Type: Grant
    Filed: April 2, 1979
    Date of Patent: February 17, 1981
    Inventor: Ratko Spasojevic