US2919260A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rubber composition and activated filler for use therein
Assignee: FRANTERRE SOC
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Filing: 1956-01-03
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Granted: 1959-12-29
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Expires: 1976-01-03
Abstract
No abstract record available.
Inventors
- 👤 Augustin Jean
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 03:49
CPC Classifications
C; C08; C08K; C08K3/00; C08K3/34; C08K3/346
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
84 words
A VULCANIZABLE RUBBER MIX CHARACTERIZED BY ABILITY TO ACQUIRE INCREASED STRENGTH CHARACTERISTICS WHEN VULCANIZED FOR A NORMAL VULCANIZING PERIOD AND CONTAINING THE GROUP CONSISTING OF HALLOYSITE, MICROKALINITE, ALLOPHANE AND ATTAPULGITE WHEREOF THE AVERAGE PARTICLE SIZE IS LESS THAN 200 MILLIMICRONS AND 1-5% BY WEIGHT BASED ON SAID CLAY OF A SUBSTANCE CAPABLE OF RELEASING AMMONIA AT A TEMPERATURE WITHIN THE RUBBER-VULCANIZING TEMPERATURE SELECTED FROM THE GROUP CONSISTING OF AN AMMONIUM SALT OF A WEAK ACID AND A CONDENSATION PRODUCT OF AMMONIA WITH AN ALDEHYDE.
Claim 2
Dependent Claim
84 words
A VULCANIZABLE RUBBER MIX CHARACTERIZED BY ABILITY TO ACQUIRE INCREASED STRENGTH CHARACTERISTICS WHEN VULCANIZED FOR A NORMAL VULCANIZING PERIOD AND CONTAINING THE GROUP CONSISTING OF HALLOYSITE, MICROKALINITE, ALLOPHANE AND ATTAPULGITE WHEREOF THE AVERAGE PARTICLE SIZE IS LESS THAN 200 MILLIMICRONS AND 1-5% BY WEIGHT BASED ON SAID CLAY OF A SUBSTANCE CAPABLE OF RELEASING AMMONIA AT A TEMPERATURE WITHIN THE RUBBER-VULCANIZING TEMPERATURE SELECTED FROM THE GROUP CONSISTING OF AN AMMONIUM SALT OF A WEAK ACID AND A CONDENSATION PRODUCT OF AMMONIA WITH AN ALDEHYDE.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-12-28 | 1963-06-29 | 1963-12-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-12-28 | 1967-06-29 | 1967-12-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-12-28 | 1971-06-29 | 1971-12-29 | $7700.00 | Window Closed / Lapsed |