US2560050A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Reclaiming rubber with phenol sulfoxides
Assignee: Bridgestone Firestone Inc
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Filing: 1949-06-29
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Granted: 1951-07-10
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Expires: 1969-06-29
Abstract
No abstract record available.
Inventors
- 👤 Wendell S Cook
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 18:01
CPC Classifications
C; C08; C08J; C08J11/00; C08J11/04; C08J11/10; C08J11/18; C08J11/28; C08J2321/00; Y; Y02; Y02W; Y02W30/00; Y02W30/50; Y02W30/62
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
27 words
A PROCESS OF RECLAIMING A VULCANIZED CONJUGATED DIENE POLYMER COMPOSITION WHICH COMPRISES HEATING THE COMPOSITION IN THE PRESENCE OF A BIS PHENOL SULFOXIDE OF THE GENERAL FORMULA
References Cited (Backward Citations)
US2359122A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-07-09 | 1955-01-08 | 1955-07-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-07-09 | 1959-01-08 | 1959-07-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-07-09 | 1963-01-08 | 1963-07-10 | $7700.00 | Window Closed / Lapsed |