Patent US3309182A successfully refreshed from Google Patents.
US3309182A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polyether diamine as stabilizer for petroleum distillate fuels
Assignee: ExxonMobil Technology and Engineering Co
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Filing: 1966-04-13
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Granted: 1967-03-14
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Expires: 1986-04-13
Abstract
No abstract record available.
Inventors
- 👤 Richard P Crowley
- 👤 William E Lovett
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 10:01
CPC Classifications
C; C10; C10L; C10L1/00; C10L1/10; C10L1/14; C10L1/22; C10L1/222; C10L1/2222; C10L1/2225
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
29 words
AN IMPROVED PETROLEUM DISTILATE FUEL BOILING IN THE RANGE OF FROM 75% TO 900%F. HAVING INCORPORATED THEREIN A MINOR STABILIZING AMOUNT OF A POLYALKOXY DIAMINE HAVING THE GENERAL FORMULA:
Claim 2
Dependent Claim
29 words
AN IMPROVED PETROLEUM DISTILATE FUEL BOILING IN THE RANGE OF FROM 75% TO 900%F. HAVING INCORPORATED THEREIN A MINOR STABILIZING AMOUNT OF A POLYALKOXY DIAMINE HAVING THE GENERAL FORMULA:
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-03-13 | 1970-09-12 | 1971-03-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-03-13 | 1974-09-12 | 1975-03-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-03-13 | 1978-09-12 | 1979-03-14 | $7700.00 | Window Closed / Lapsed |