Patent US2877102A successfully refreshed from Google Patents.
US2877102A
Expired / Lapsed
US
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Diesel oil improvers
Assignee: Rohm and Haas Co
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Filing: 1955-11-09
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Granted: 1959-03-10
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Expires: 1975-11-09
Abstract
No abstract record available.
Inventors
- 👤 Charles L Levesque
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 10:15
CPC Classifications
C; C10; C10L; C10L1/00; C10L1/10; C10L1/14; C10L1/22; C10L1/226
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
32 words
AN IMPROVED DIESEL FUEL OIL FOR COMPRESSION-IGNITION ENGINES HAVING DISSOLVED THEREIN A SMALL QUANTITY, AT LEAST SUFFICIENT TO INCREASE THE CETANE NUMBER OF SAID OIL, OF AN ORGANIC AZO COMPOUND HAVING FORMULA
Claim 2
Dependent Claim
32 words
AN IMPROVED DIESEL FUEL OIL FOR COMPRESSION-IGNITION ENGINES HAVING DISSOLVED THEREIN A SMALL QUANTITY, AT LEAST SUFFICIENT TO INCREASE THE CETANE NUMBER OF SAID OIL, OF AN ORGANIC AZO COMPOUND HAVING 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) | 1962-03-09 | 1962-09-08 | 1963-03-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-03-09 | 1966-09-08 | 1967-03-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-03-09 | 1970-09-08 | 1971-03-10 | $7700.00 | Window Closed / Lapsed |