US2458425A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Oil compositions
Assignee: Gulf Research and Development Co
•
Filing: 1947-06-19
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Granted: 1949-01-04
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Expires: 1967-06-19
Abstract
No abstract record available.
Inventors
- 👤 Albert G Rocehini
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 10:54
CPC Classifications
C; C10; C10M; C10M169/00; C10M169/04; C10M2203/00; C10M2203/10; C10M2203/1006; C10M2215/00; C10M2215/08; C10N; C10N2010/00; C10N2010/04; C10N2010/14; C10N2010/16; C10N2030/00; C10N2030/04; C10N2030/10; C10N2030/12; C10N2040/00; C10N2040/25; C10N2040/252
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-01-04 | 1952-07-05 | 1953-01-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-01-04 | 1956-07-05 | 1957-01-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-01-04 | 1960-07-05 | 1961-01-04 | $7700.00 | Window Closed / Lapsed |