Patents by Inventor Jack W. Donald

Jack W. Donald 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).

  • Contraceptive and/or antivenereal disease tampon
    Patent number: 4309997
    Abstract: A new concept of pregnancy and disease prevention is provided by a medicated tampon in the form of a soft, porous foam ball of substantially spherical configuration, which is easily insertable into the vagina to cover the cervical area and which is impregnated with a contraceptive for control of pregnancy, and/or with a safe spectrum of antibiotics for control of venereal disease. The tampon may be inserted before intercourse to remain in place during intercourse.
    Type: Grant
    Filed: March 24, 1980
    Date of Patent: January 12, 1982
    Inventor: Jack W. Donald
  • Contraceptive-antivenereal disease tampon
    Patent number: 4186742
    Abstract: A new concept of pregnancy and disease prevention is provided by a medicated tampon in the form of a soft, porous foam ball, which is easily insertable into the vagina to cover the cervical area and which is impregnated with a safe spectrum of antibiotics for control of venereal disease and with a contraceptive for control of pregnancy. The tampon may be inserted before intercourse to remain in place during intercourse.
    Type: Grant
    Filed: June 9, 1978
    Date of Patent: February 5, 1980
    Assignee: Donald Enterprises, Inc.
    Inventor: Jack W. Donald