Patents by Inventor Paul R. Chalifoux

Paul R. Chalifoux 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).

  • Can construction with wall indentation
    Patent number: 5217133
    Abstract: A container is provided with a top to which is secured at least one strip. The strip or strips can be free of prestress bias or are provided with a prestress bias so that when the top is severed from the container, the strip or strips are lifted away from the top so that the strip can be grasped easily to provide a means for lifting the top away from the container. An indentation is provided in the container wall to prevent a severed container top from sinking into the contents of the container.
    Type: Grant
    Filed: May 26, 1992
    Date of Patent: June 8, 1993
    Assignee: Wellesley Research Associates, Inc.
    Inventors: William J. Timson, Paul R. Chalifoux
  • Dental implant system and apparatus
    Patent number: 5197881
    Abstract: A dental implant is provided for insertion into the jawbone of a patient for the purpose of building a dental prostheses thereon. The implant includes a central hole for accommodating a dental post having wings. The dental post wings fit into mating slots in the implant hole in order to effect retention of the post in the implant while avoiding rotation of the positioned post.
    Type: Grant
    Filed: December 30, 1991
    Date of Patent: March 30, 1993
    Assignee: Wellesley Research Associates, Inc.
    Inventor: Paul R. Chalifoux