US3053670A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dental impression composition
Assignee: Individual
•
Filing: 1961-02-20
•
Granted: 1962-09-11
•
Expires: 1981-02-20
Abstract
No abstract record available.
Inventors
- 👤 Nordin Elling Harald
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 23:04
CPC Classifications
A; A61; A61C; A61C9/00; A61C9/0006; A61K; A61K6/00; A61K6/90
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
48 words
A METHOD OF PREVENTING SHRINKING OF IMPRESSION COMPOSITION INTENDED ESPECIALLY FOR DENTAL PURPOSES AND PRODUCED BY MIXING AN AQUEOUS SOLUTION OF AN ALGINATE AND A METAL SALT WHICH CONVERTS THE ALGINATE INTO INSOLUBLE FORM WHILE FORMING AN ELASTIC GEL, WHICH COMPRISES ADDING TO THE MIXTURE ALSO PULVERIZED ALUMINUM.
Claim 2
Independent Claim
48 words
A METHOD OF PREVENTING SHRINKING OF IMPRESSION COMPOSITION INTENDED ESPECIALLY FOR DENTAL PURPOSES AND PRODUCED BY MIXING AN AQUEOUS SOLUTION OF AN ALGINATE AND A METAL SALT WHICH CONVERTS THE ALGINATE INTO INSOLUBLE FORM WHILE FORMING AN ELASTIC GEL, WHICH COMPRISES ADDING TO THE MIXTURE ALSO PULVERIZED ALUMINUM.
Claim 3
Dependent Claim
16 words
A METHOD ACCORDING TO CLAIM 1 IN WHICH LEAD SILICATE IS ALSO ADDED TO THE MIXTURE.
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) | 1965-09-10 | 1966-03-12 | 1966-09-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-09-10 | 1970-03-12 | 1970-09-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-09-10 | 1974-03-12 | 1974-09-11 | $7700.00 | Window Closed / Lapsed |