Patents Assigned to Royal Plastic
  • Eyeglass frame with separately interchangeable, spring-biased curved lenses
    Patent number: 6601954
    Abstract: The invention pertains to an eyeglass frame with lenses that are interchangeable independently of each other, of the type comprising apertures for said lenses connected to each other by a bridge, as well as temples, with each of said apertures being provided at least partially on its circumferences with a groove, characterized in that said apertures are curved and in that each groove presents at least on its circumference a deepest part and a shallowest part.
    Type: Grant
    Filed: October 31, 2001
    Date of Patent: August 5, 2003
    Assignee: Royal Plastic
    Inventor: Rémy Menon