Patents by Inventor Alexander Gregory Swystun

Alexander Gregory Swystun 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).

  • Unbonded fibrous non-woven sheet and articles made therefrom
    Patent number: 3993812
    Abstract: An unbonded fibrous non-woven sheet comprising four layers of continuous isotactic polypropylene filaments. A shipping bag may be made from the product obtained by thermally bonding said sheet.
    Type: Grant
    Filed: March 6, 1975
    Date of Patent: November 23, 1976
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: Samir Costandi Debbas, Arthur John Herrman, Alexander Gregory Swystun