Patents by Inventor Alvin C. March

Alvin C. March 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).

  • Nonwoven sheet material or the like
    Patent number: D256062
    Type: Grant
    Filed: November 13, 1978
    Date of Patent: July 22, 1980
    Assignee: The Procter & Gamble Company
    Inventors: Charlotte D. Joachim, Alvin C. March, Kay S. Ratliff
  • Nonwoven sheet material or the like
    Patent number: D256286
    Type: Grant
    Filed: November 13, 1978
    Date of Patent: August 5, 1980
    Assignee: The Procter & Gamble Company
    Inventors: Charlotte D. Joachim, Alvin C. March, Kay S. Ratliff
  • Nonwoven sheet material or the like
    Patent number: D257295
    Type: Grant
    Filed: November 13, 1978
    Date of Patent: October 7, 1980
    Assignee: The Procter & Gamble Company
    Inventors: Charlotte D. Joachim, Alvin C. March, Kay S. Ratliff