Patent US2571092A successfully refreshed from Google Patents.
US2571092A
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4-amino cardanol as an antioxidant for mineral hydrocarbon oil
Assignee: Harvel Corp
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Filing: 1950-04-19
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Granted: 1951-10-16
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Expires: 1970-04-19
Abstract
No abstract record available.
Inventors
- 👤 Wasserman David
- 👤 Caplan Solomon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 05:33
CPC Classifications
C; C10; C10L; C10L1/00; C10L1/10; C10L1/14; C10L1/22; C10L1/222; C10L1/223; C10L1/2235; C10M; C10M1/00; C10M1/08; C10M2215/00; C10M2215/02; C10M2215/06; C10M2215/062; C10N; C10N2040/00; C10N2040/08; C10N2040/135; C10N2040/20; C10N2040/22
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
26 words
A CRACKED GASOLINE HAVING DISSOLVED THEREIN 4-AMINO CARDANOL, THE RATIO BY WEIGHT OF THE FORMER TO THE LATTER BEING IN THE RANGE OF 10,000-1 TO 1000-1.
Claim 2
Dependent Claim
26 words
A CRACKED GASOLINE HAVING DISSOLVED THEREIN 4-AMINO CARDANOL, THE RATIO BY WEIGHT OF THE FORMER TO THE LATTER BEING IN THE RANGE OF 10,000-1 TO 1000-1.
References Cited (Backward Citations)
US2275311A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-10-15 | 1955-04-16 | 1955-10-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-10-15 | 1959-04-16 | 1959-10-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-10-15 | 1963-04-16 | 1963-10-16 | $7700.00 | Window Closed / Lapsed |