Patent US2653916A successfully refreshed from Google Patents.
US2653916A
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Method of reclaiming scrap vulcanized material
Assignee: U S Rubber Reclaiming Co Inc
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Filing: 1953-06-25
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Granted: 1953-09-29
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Expires: 1973-06-25
Abstract
No abstract record available.
Inventors
- 👤 Joseph C Elgin
- 👤 Edward F Sverdrup
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 14:41
CPC Classifications
B; B29; B29B; B29B17/00; B29K; B29K2021/00; B29L; B29L2030/00; Y; Y02; Y02W; Y02W30/00; Y02W30/50; Y02W30/62
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
125 words
THE PROCESS OF RECLAIMING SCRAP VULCANIZED MATERIAL WHICH COMPRISES MECHANICALLY WORKING THE SCRAP UNDER COMPACTING PRESSURE TO GENERATE HEAT SUFFICIENT TO RAISE THE TEMPERATURE TO OVER ABOUT 325* F. AS IT MOVES FORWARD PROGRESSIVELY AT A RATE OF NOT LESS THAN ABOUT 50 POUNDS PER HOUR IN THE PRESENCE OF AN AGENT WHICH WILL PROVIDE UNDER THE CONDITIONS OF THE PROCESS AN UNSATURATED CARBOXYLIC ACID HAVING OBLY HYDROCARBON SUBSTITUENTS EXCEPT FOR RADICALS OF THE CLASS CONSISTING OF HYDROXYL AND CHLORINE, BUT NOT HAVING BOTH HYDROXYL AND CHLORINE SUBSTITUENTS AND HAVING A DOUBLE BOND LINKING TWO CARBON ATOMS ONE OF WHICH IS LINKED BY A SINGLE BOND TO A CARBON ATOM WHICH HAS OXYGEN ATTACHED THERETO BUT WHICH IS NOT DIRECTLY ATTACHED TO ANOTHER CARBON ATOMS.
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) | 1956-09-28 | 1957-03-30 | 1957-09-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-09-28 | 1961-03-30 | 1961-09-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-09-28 | 1965-03-30 | 1965-09-29 | $7700.00 | Window Closed / Lapsed |