Patent US2653915A successfully refreshed from Google Patents.
US2653915A
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Processes of reclaiming rubber and reclaimed rubber products
Assignee: U S Rubber Reclaiming Co Inc
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Filing: 1951-02-03
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Granted: 1953-09-29
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Expires: 1971-02-03
Abstract
No abstract record available.
Inventors
- 👤 Joseph C Elgin
- 👤 Edward F Sverdrup
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 20:49
CPC Classifications
B; B29; B29B; B29B17/00; B29K; B29K2021/00; Y; Y02; Y02W; Y02W30/00; Y02W30/50; Y02W30/62
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
118 words
A RECLAIMED MATERIAL FORMED FROM SULFURVULCANIZED RUBBERY HYDROCARBON POLYMERIC SCRAP, AT LEAST 50% OF THE MONOMERIC UNITS OF THE RUBBERY HYDROCARBON POLYMERIC MATERIAL THEREIN BEING FROM THE GROUP CONSISTING OF BUTADIENE AND ISOPRENE, SAID RECLAIM RETAINING SUBSTANTIAL AMOUNTS OF COMBINED SULFUR OF VULCANIZATION AND HAVING A SPECIFIC GRAVITY OF NOT OVER ABOUT 1.20, AND A MOONEY (ML/180/1.5-1) VISCOSITY OF FROM ABOUT 32 TO ABOUT 74 AND HAVING WHEN CURED IN THE RECLAIMERS'' ASSOCIATION FORMULA (50%) FOR 30 MINUTES AT 287* F. A TENSILE STRENGTH OF AT LEAST ABOUT 705 P.S.I., A PERCENT ELONGATION OF AT LEAST ABOUT 240, AN ABRASION LOSS (CC./H. P. H. 8/0-280 PAPER) OF NOT OVER ABOUT 642, AND GIVING A WYALITY FACTOR DEFINED AS
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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) | 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 |