Patents by Inventor Bora Janjic

Bora Janjic 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).

  • Patent number: 3934348
    Abstract: A method of forming a porcelain crown that requires no shoulder, and can be fitted over any type of standard impression made by a dentist. In the method, a laboratory plaster model is made from a dentist's impression and includes male and female dies. The male die has successive layers of materials applied thereupon comprising first a 0.002 gauge platinum film followed successively by a first layer of gold crust, a second layer of gold crust and opaque porcelain, upon which a regular porcelain is applied that fits the female die with the regular porcelain receiving thereafter a final application of glazing powder. The crown is baked between each step of the process.
    Type: Grant
    Filed: January 2, 1975
    Date of Patent: January 27, 1976
    Inventor: Bora Janjic