US2401993A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Corrosion resistant composition
Assignee: Standard Oil Development Co
•
Filing: 1942-12-31
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Granted: 1946-06-11
•
Expires: 1962-12-31
Abstract
No abstract record available.
Inventors
- 👤 Jones I Wasson
- 👤 Gordon W Duncan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 08:42
CPC Classifications
C; C10; C10M; C10M1/00; C10M1/08; C10M2207/00; C10M2207/02; C10M2207/023; C10M2207/025; C10M2207/04; C10M2207/10; C10M2207/12; C10M2207/125; C10M2207/129; C10M2207/40; C10M2207/404; C10M2215/00; C10M2215/02; C10M2215/04; C10M2215/24; C10M2215/26; C10M2219/00; C10M2219/02; C10M2219/024; C10M2219/08; C10M2219/082; C10M2219/085; C10N; C10N2030/00; C10N2030/12; C10N2040/00; C10N2040/08; C10N2040/135; C10N2040/14; C10N2040/16; C10N2040/17
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1949-06-10 | 1949-12-10 | 1950-06-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1953-06-10 | 1953-12-10 | 1954-06-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1957-06-10 | 1957-12-10 | 1958-06-11 | $7700.00 | Window Closed / Lapsed |