Patents by Inventor Nicolae I. Calutoiu

Nicolae I. Calutoiu 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: 4507805
    Abstract: A convertible sleeping bag for use as a sleeping bag and an ambulatory garment having integral upper torso and lower torso portions, the upper torso portion having a front and back and at least two closeable openings, each having two sides when open and extending generally vertically of the bag and provided with closure elements on each side of the opening which can selectively open each vertical opening and engage another vertical opening closure element so as to be capable of closing each vertical opening to form at least one separate closed arm shaped portion in the upper torso portion; and the lower torso portion having at least two closeable openings, each having two sides when open and extending vertically of the bag and provided with closure elements on each side of the opening which can selectively open each vertical opening and engage the other open vertical opening closure element to close each vertical opening in a manner to leave an opening from the front to the back of the sleeping bag while form
    Type: Grant
    Filed: December 15, 1983
    Date of Patent: April 2, 1985
    Inventor: Nicolae I. Calutoiu