Dental model alignment device
Patent 4997370 Issued on March 5, 1991. Estimated Expiration Date: 
September 25, 2009. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
September 25, 2009. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent References 3153283 3470614 3798772 Two-part dowel pin and tool therefor Casting collar for dental impression tray Prosthodontic dowel pin Dental technicians tool and tool retainer Patent #: 4363625 InventorApplicationNo. 412573 filed on 09/25/1989US Classes:433/74Dowel pin or positioner thereforExaminersPrimary: Wilson, John J.Attorney, Agent or FirmInternational ClassA61C 019/00AbstractA mounting and alignment device for removably mounting a dental model or portion thereof to a base cast. The device comprises an alignment collar which is adapted to be fixedly secured to a dowel pin and a dental model, the combination being receivable in a complimentary depression in a base cast to align and retain the dental model, preventing it from rotating or moving transversely with respect to the base cast when the portions are cooperatively engaged. A gasket may be included in the base cast to further enhance the engagement between the dowel pin and the base cast.Other References
Field of SearchDowel pin or positioner therefor | |
