US2522430A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Suppression of corrosion
Assignee: Standard Oil Development Co
•
Filing: 1945-07-02
•
Granted: 1950-09-12
•
Expires: 1965-07-02
Abstract
No abstract record available.
Inventors
- 👤 Elza Q Camp
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 19:27
CPC Classifications
C; C23; C23F; C23F11/00; C23F11/02; C23F11/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1970564A
Cited
US2148862A
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US2054282A
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US2215092A
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US2238651A
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US2220059A
Cited
US2257752A
Cited
US2330051A
Cited
US2357559A
Cited
US2453881A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-09-11 | 1954-03-13 | 1954-09-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-09-11 | 1958-03-13 | 1958-09-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-09-11 | 1962-03-13 | 1962-09-12 | $7700.00 | Window Closed / Lapsed |