Patent US3321401A successfully refreshed from Google Patents.
US3321401A
Expired / Lapsed
US
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Lubricating compositions
Assignee: BP PLC
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Filing: 1965-09-08
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Granted: 1967-05-23
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Expires: 1985-09-08
Abstract
No abstract record available.
Inventors
- 👤 Ford John Frederick
- 👤 Blanchard Peter Michael
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 15:48
CPC Classifications
C; C10; C10M; C10M137/00; C10M137/02; C10M137/04; C10M137/16; C10M2207/00; C10M2207/04; C10M2207/28; C10M2207/281; C10M2207/282; C10M2207/283; C10M2207/286; C10M2207/30; C10M2207/302; C10M2207/304; C10M2207/34; C10M2209/00; C10M2209/02; C10M2209/10; C10M2209/103; C10M2209/108; C10M2209/11; C10M2209/111; C10M2209/112; C10M2215/00; C10M2215/02; C10M2215/04; C10M2215/044; C10M2215/24; C10M2215/26; C10M2223/00; C10M2223/02; C10M2223/04; C10M2223/041; C10M2223/042; C10M2223/043; C10M2223/047; C10M2223/049; C10M2227/00; C10M2227/02; C10M2229/00; C10M2229/02; C10M2229/04; C10M2229/05; C10N; C10N2050/00; C10N2050/015; C10N2050/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
29 words
A LUBRICATING COMPOSITION COMPRISING A LUBRICATING BASE OIL HAVING DISSOLVED THEREIN (A) FROM ABOUT 0.001 TO 0.5% BY WEIGHT OF THE COMPOSITION OF AN ORGANIC PHOSPHITE HAVEIN THE FORMULA
Claim 2
Dependent Claim
29 words
A LUBRICATING COMPOSITION COMPRISING A LUBRICATING BASE OIL HAVING DISSOLVED THEREIN (A) FROM ABOUT 0.001 TO 0.5% BY WEIGHT OF THE COMPOSITION OF AN ORGANIC PHOSPHITE HAVEIN THE FORMULA
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) | 1970-05-22 | 1970-11-21 | 1971-05-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-05-22 | 1974-11-21 | 1975-05-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-05-22 | 1978-11-21 | 1979-05-23 | $7700.00 | Window Closed / Lapsed |