Patents by Inventor Marcelle Le Gars

Marcelle Le Gars 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).

  • Double wrapped cigarettes with reduced spotting and method of manufacture
    Patent number: 5143099
    Abstract: The invention concerns cigarette spotting.To reduce or prevent cigarette paper spotting, the cigarette is provided with an inner wrapper placed between the tobacco column and the external envelope, this inner wrapper being a paper made of cellulose fibers, with a basis weight at the utmost equal to 30 g/m.sup.2, presenting pores made during paper manufacture, or perforations made after manufacture in such a way that the air permeability is at leaste 500 Coresta units.This invention applies to all cigarettes and similar smoking products.
    Type: Grant
    Filed: August 13, 1990
    Date of Patent: September 1, 1992
    Assignee: Papeteries de Mauduit
    Inventors: Marcelle Le Gars, Nicolas Baskevitch