Patent US2459754A successfully refreshed from Google Patents.
US2459754A
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Purification of phenol sulfides and preparation of metallic salts thereof
Assignee: Bridgestone Firestone Inc
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Filing: 1946-05-23
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Granted: 1949-01-18
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Expires: 1966-05-23
Abstract
No abstract record available.
Inventors
- 👤 Harry E Albert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 21:38
CPC Classifications
C; C07; C07C; C07C319/00; C07C319/26; C07C319/28; C07C319/14; C10; C10M; C10M135/00; C10M135/20; C10M135/28; C10M2219/00; C10M2219/08; C10M2219/082; C10M2219/087; C10M2219/088; C10M2219/089; C10N; C10N2010/00; C10N2010/04; C10N2010/08; C10N2010/10
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2207719A
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US2246712A
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US2362289A
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US2278498A
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US2310449A
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US2249626A
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US2270183A
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US2336074A
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US2346826A
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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) | 1952-01-18 | 1952-07-19 | 1953-01-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-01-18 | 1956-07-19 | 1957-01-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-01-18 | 1960-07-19 | 1961-01-18 | $7700.00 | Window Closed / Lapsed |