Patents by Inventor Raymond J. Ruda

Raymond J. Ruda 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).

  • Self-closing bag
    Patent number: 4071186
    Abstract: A bag has an opening on its front side adjacent to its mouth which exposes the inner surface of the rear side, there being a first cohesive coating on such inner surface in registration with the opening, their being a second cohesive coating on the front side adjacent to the opening. After the contents have been placed in the bag, the end of the bag is folded over between the cohesive coatings so that they register with each other, and by their nature they adhere to each other in response to being pressed together.
    Type: Grant
    Filed: June 15, 1976
    Date of Patent: January 31, 1978
    Assignee: Bagcraft Corporation of America
    Inventor: Raymond J. Ruda
  • Header bag
    Patent number: 3974958
    Abstract: A header bag is made from a web of flexible thermoplastic sheet having a prospective header portion which comprises a selected number of folds of the plastic sheet that are heat-laminated together, the header portion having a heat-embossed stiffening pattern thereon.
    Type: Grant
    Filed: October 9, 1974
    Date of Patent: August 17, 1976
    Assignee: Bagcraft Corporation of America
    Inventor: Raymond J. Ruda
  • Bag having modified closure flaps
    Patent number: 3974959
    Abstract: A paper bag has a conventional rectangular bottom and has its side panels so cut and scored at the other end as to define four end panels arranged to provide a reclosable rectangular end at the mouth of the bag.
    Type: Grant
    Filed: October 9, 1974
    Date of Patent: August 17, 1976
    Assignee: Bagcraft Corporation of America
    Inventor: Raymond J. Ruda