The company found itself in a precarious situation. The original revolver patents had expired, allowing other companies to produce copies of his designs. Additionally, metallic cartridge revolvers were gaining in popularity, but Colt could not produce any because of the Rollin White patent held by rival Smith & Wesson. Likewise, Colt had been so protective of its own patents that other companies had been unable to make revolvers similar to their design. As the Rollin White patent neared expiration, Colt moved to develop its own metallic cartridge revolver.