US3400097A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cast porcelain prosthesis and method of making the same
Assignee: ROAD S STAMFORD
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Filing: 1964-01-02
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Granted: 1968-09-03
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Expires: 1984-01-02
Abstract
No abstract record available.
Inventors
- 👤 Abraham B Weinstein
- 👤 Erdman Stanley
- 👤 Weber John
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 00:14
CPC Classifications
A; A61; A61C; A61C13/00; A61C13/0003; A61K; A61K6/00; A61K6/15; A61K6/17; A61K6/70; A61K6/78; A61K6/80; A61K6/802; A61K6/807; A61K6/813
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
65 words
A CAST COLORED PORCELAIN DENTAL PROSTHESIS MADE OF SUBSTANTIALLY HOMOGENEOUS MATERIAL, HAVING TWO AREAS, ONE A SMOOTH SURFACE FOR MOVING CONTACT WITH ORAL TISSUE IN THE MOUTH AND ANOTHER AREA CONFORMING TO THE SUPPORTING SURFACE TO WHICH IT IS TO BE FIXED IN POSITION, SAID PROSTHESIS COMPRISING A CHEMICALLY BOUND COMBINATION OF A POWDERED COLORED PROCELAIN FRIT, WHEREIN THE BASIC FRIT COMPRISES APPAROXIMATELY, BY WEIGHT:
Claim 2
Dependent Claim
65 words
A CAST COLORED PORCELAIN DENTAL PROSTHESIS MADE OF SUBSTANTIALLY HOMOGENEOUS MATERIAL, HAVING TWO AREAS, ONE A SMOOTH SURFACE FOR MOVING CONTACT WITH ORAL TISSUE IN THE MOUTH AND ANOTHER AREA CONFORMING TO THE SUPPORTING SURFACE TO WHICH IT IS TO BE FIXED IN POSITION, SAID PROSTHESIS COMPRISING A CHEMICALLY BOUND COMBINATION OF A POWDERED COLORED PROCELAIN FRIT, WHEREIN THE BASIC FRIT COMPRISES APPAROXIMATELY, BY WEIGHT:
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-09-03 | 1972-03-04 | 1972-09-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-09-03 | 1976-03-04 | 1976-09-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-09-03 | 1980-03-04 | 1980-09-03 | $7700.00 | Window Closed / Lapsed |