Patents by Inventor Winton C. Anderson

Winton C. Anderson 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).

  • By-product gypsum fillers for mica-free joint compounds
    Patent number: 4049866
    Abstract: A filler for a mica-free joint compound, comprising by-product gypsum having a mean particle size between about 11 and about 12 microns, a percentage by weight of particles smaller than 1 micron of between about 5 and about 6.5, and a packed dry bulk volume no greater than about 93 cc. per 100 grams.
    Type: Grant
    Filed: March 4, 1976
    Date of Patent: September 20, 1977
    Assignee: United States Gypsum Company
    Inventors: Marvin K. Lane, Winton C. Anderson
  • Mica, free, crack-resistant drying type joint compound
    Patent number: 3998769
    Abstract: A drying type crack-resistant joint compound comprising terra alba and a binder, the compound being characterized in that it is essentially free of mica.
    Type: Grant
    Filed: December 24, 1975
    Date of Patent: December 21, 1976
    Assignee: United States Gypsum Company
    Inventors: Marvin K. Lane, Winton C. Anderson
  • By-product gypsum fillers for mica-free joint compounds consisting of synthetic calcium sulphate dihydrate having a mean particle size of 11 or 12 microns
    Patent number: 3975320
    Abstract: A filler for a mica-free joint compound, comprising by-product gypsum having a mean particle size between about 11 and about 12 microns, a percentage by weight of particles smaller than 1 micron of between about 5 and about 6.5, and a packed dry bulk volume no greater than about 93 cc. per 100 grams.
    Type: Grant
    Filed: May 11, 1973
    Date of Patent: August 17, 1976
    Assignee: United States Gypsum Company
    Inventors: Marvin K. Lane, Winton C. Anderson