Patent US2471889A successfully refreshed from Google Patents.
US2471889A
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Rust preventive compositions
Assignee: Standard Oil Development Co
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Filing: 1947-02-24
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Granted: 1949-05-31
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Expires: 1967-02-24
Abstract
No abstract record available.
Inventors
- 👤 Miriam A Paliwoda
- 👤 Gordon W Duncan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 21:39
CPC Classifications
C; C10; C10M; C10M1/00; C10M1/08; C10M2203/00; C10M2203/10; C10M2203/102; C10M2203/104; C10M2203/106; C10M2203/108; C10M2205/00; C10M2205/14; C10M2205/16; C10M2205/17; C10M2207/00; C10M2207/02; C10M2207/023; C10M2207/027; C10M2207/04; C10M2207/046; C10M2207/10; C10M2207/12; C10M2207/125; C10M2207/129; C10M2207/28; C10M2207/281; C10M2207/282; C10M2207/283; C10M2207/286; C10M2215/00; C10M2215/02; C10M2219/00; C10M2219/04; C10M2219/044; C10N; C10N2030/00; C10N2030/12
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2390202A
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US2182992A
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US2306315A
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US2339200A
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US2381247A
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US2371333A
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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) | 1952-05-30 | 1952-11-29 | 1953-05-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-05-30 | 1956-11-29 | 1957-05-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-05-30 | 1960-11-29 | 1961-05-31 | $7700.00 | Window Closed / Lapsed |