Patents by Inventor Charles M. Winchester

Charles M. Winchester 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).

  • Nitrocellulose-urethane traffic paint
    Patent number: 4752502
    Abstract: Disclosed is a process for forming a paint marking on a roadway surface using a paint composition comprising (a) a paint vehicle comprising the reaction product of nitrocellulose, a polymeric hydroxyalkyl acrylate modifier, and an isocyanate resin as the binder, and a solvent, and (b) pigment in an amount sufficient to color the paint composition.
    Type: Grant
    Filed: March 16, 1987
    Date of Patent: June 21, 1988
    Assignee: Hercules Incorporated
    Inventor: Charles M. Winchester