US2928790A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Petroleum hydrocarbon oil stabilized against oxidative deterioration
Assignee: Ethyl Corp
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Filing: 1956-10-03
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Granted: 1960-03-15
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Expires: 1976-10-03
Abstract
No abstract record available.
Inventors
- 👤 John D Bartleson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 15:51
CPC Classifications
C; C10; C10M; C10M133/00; C10M133/02; C10M133/04; C10M133/06; C10M133/08; C07; C07F; C07F9/00; C07F9/02; C07F9/04; C10L; C10L1/00; C10L1/10; C10L1/14; C10M1/00; C10M1/08; C10M133/12; C10M133/14; C10M141/00; C10M141/04; C10L1/22; C10L1/222; C10L1/2222; C10L1/2225; C10L1/26; C10L1/2691; C10M2209/00; C10M2209/02; C10M2209/08; C10M2209/084; C10M2215/00; C10M2215/02; C10M2215/06; C10M2215/062; C10M2223/00; C10M2223/12; C10M2223/121; C10M2225/00; C10M2225/04; C10N; C10N2030/00; C10N2030/12; C10N2040/00; C10N2040/04; C10N2040/042; C10N2040/044; C10N2040/046; C10N2040/135; C10N2040/14; C10N2040/16; C10N2040/17; C10N2040/20; C10N2040/22; C10N2040/24; C10N2040/241; C10N2040/242; C10N2040/243; C10N2040/244; C10N2040/245; C10N2040/246; C10N2040/247; C10N2040/30; C10N2040/32; C10N2040/34; C10N2040/36; C10N2040/38; C10N2040/40; C10N2040/42; C10N2040/44; C10N2040/50; C10N2050/00; C10N2050/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
46 words
PETROLEUM HYDROCARBON OIL NORMALLY TENDING TO DETERIORATE IN THE PRESENCE OF AIR AT ELEVATED TEMPERATURES BELOW THE CRACKING TEMPERATURE OF THE OIL CONTAINING FROM ABOUT 0.05 TO ABOUT 2 PERCENT BY WEIGHT EACH OF A P2S5-DICYCLIC TERPENE REACTION PRODUCT AND A 3,5-DIALKYL-J-HYDROXYBENZYLN AMINE HAVING THE FORMULA:
Claim 2
Dependent Claim
46 words
PETROLEUM HYDROCARBON OIL NORMALLY TENDING TO DETERIORATE IN THE PRESENCE OF AIR AT ELEVATED TEMPERATURES BELOW THE CRACKING TEMPERATURE OF THE OIL CONTAINING FROM ABOUT 0.05 TO ABOUT 2 PERCENT BY WEIGHT EACH OF A P2S5-DICYCLIC TERPENE REACTION PRODUCT AND A 3,5-DIALKYL-J-HYDROXYBENZYLN AMINE HAVING THE FORMULA:
References Cited (Backward Citations)
US2363134A
Cited
US2379453A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-03-15 | 1963-09-14 | 1964-03-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-03-15 | 1967-09-14 | 1968-03-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-03-15 | 1971-09-14 | 1972-03-15 | $7700.00 | Window Closed / Lapsed |