US3234033A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dental impression materials
Assignee: Individual
•
Filing: 1964-06-17
•
Granted: 1966-02-08
•
Expires: 1984-06-17
Abstract
No abstract record available.
Inventors
- 👤 Jacque C Morrell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 17:40
CPC Classifications
A; A61; A61K; A61K6/00; A61K6/90
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
79 words
A DENTAL IMPRESSION COMPOSITION CONSISTING ESSENTIALLY OF A MIXTURE OF AN ALKALI METAL ALGINATE, CALCIUM SULPHATE, A METAL FLUORIDE AND AN INERT FILLER, THE SAID FLUORIDE BEING SELECTED FROM THE GROUP CONSISTING OF MAGNESIUM AND ALUMINUM FLUORIDES, AND BEING PRESENT IN AN AMOUNT OF FROM ABOUT 1% TO ABOUT 10%, SAID FLUORIDE BEING ADAPTED TO ELIMINATE FIXING OF SAID COMPOSITION WHILE MAINTAINING CONTROLLED SETTING TIME AND MINIMIZING DETERIORATION WITH AGE, AND TO PROVIDE SMOOTH AND ACCURATE IMPRESSION AND CASTS.
Claim 2
Dependent Claim
79 words
A DENTAL IMPRESSION COMPOSITION CONSISTING ESSENTIALLY OF A MIXTURE OF AN ALKALI METAL ALGINATE, CALCIUM SULPHATE, A METAL FLUORIDE AND AN INERT FILLER, THE SAID FLUORIDE BEING SELECTED FROM THE GROUP CONSISTING OF MAGNESIUM AND ALUMINUM FLUORIDES, AND BEING PRESENT IN AN AMOUNT OF FROM ABOUT 1% TO ABOUT 10%, SAID FLUORIDE BEING ADAPTED TO ELIMINATE FIXING OF SAID COMPOSITION WHILE MAINTAINING CONTROLLED SETTING TIME AND MINIMIZING DETERIORATION WITH AGE, AND TO PROVIDE SMOOTH AND ACCURATE IMPRESSION AND CASTS.
References Cited (Backward Citations)
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Cited
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-02-07 | 1969-08-09 | 1970-02-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-02-07 | 1973-08-09 | 1974-02-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-02-07 | 1977-08-09 | 1978-02-08 | $7700.00 | Window Closed / Lapsed |