US3256191A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Alkenoate derivatives
Assignee: Texaco Inc
•
Filing: 1962-10-18
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Granted: 1966-06-14
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Expires: 1982-10-18
Abstract
No abstract record available.
Inventors
- 👤 David D Reed
- 👤 James M Petersen
- 👤 Hazel E Kluge
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 20:50
CPC Classifications
C; C10; C10M; C10M137/00; C10M137/12; C10M137/14; C07; C07F; C07F9/00; C07F9/02; C07F9/28; C07F9/38; C07F9/40; C07F9/4071; C07F9/4075; C10M2207/00; C10M2207/02; C10M2207/023; C10M2207/28; C10M2207/282; C10M2207/34; C10M2209/00; C10M2209/02; C10M2209/08; C10M2209/084; C10M2223/00; C10M2223/02; C10M2223/04; C10M2223/045; C10M2223/06; C10M2223/065; C10M2229/00; C10M2229/04; C10M2229/041; C10N; C10N2010/00; C10N2010/04
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
38 words
A LUBRICATING OIL CONTAINING BETWEEN 0.2 AND 10 WT. PERCENT OF AN ADDITIVE SELECTED FROM THE GROUP CONSISTING OF THIOPHOSPHOOXY ALKENOATE AND A MIXTURE OF SAID THIOPHOSPHONOXY ALDENOATE AND CORRESPONDING PHOSPHONOXY ALKENOATGE, SAID THIOPHOSPHONOXY ALKENOATE OF THE FORMULA:
References Cited (Backward Citations)
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US2683168A
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US2914478A
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GB792553A
Cited
GB838928A
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US3158641A
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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) | 1969-06-13 | 1969-12-13 | 1970-06-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-06-13 | 1973-12-13 | 1974-06-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-06-13 | 1977-12-13 | 1978-06-14 | $7700.00 | Window Closed / Lapsed |