Patent US2754183A successfully refreshed from Google Patents.
US2754183A
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Guanylamino dihydropyrimidines
Assignee: Universal Oil Products Co
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Filing: 1954-10-22
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Granted: 1956-07-10
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Expires: 1974-10-22
Abstract
No abstract record available.
Inventors
- 👤 Joseph A Chenicek
- 👤 Ralph B Thompson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 16:15
CPC Classifications
C; C07; C07D; C07D239/00; C07D239/02; C07D239/20; C07D239/22; C10; C10L; C10L1/00; C10L1/10; C10L1/14; C10L1/22; C10L1/228; C10L1/2283; C10M; C10M1/00; C10M1/08; C10M2215/00; C10M2215/22; C10M2215/221; C10M2215/225; C10M2215/226; C10M2215/24; C10M2215/30; C10N; C10N2040/00; C10N2040/135
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
18 words
A 2-(GUANYLAMINO)-4,5-DIHYDROPYRIMIDINE HAVING AT LEAST ONE HYDROCARBON SUBSTITUENT SELECTED FROM THE GROUP CONSISTING OF ALKYL AND ARYL RADICALS.
Claim 2
Dependent Claim
18 words
A 2-(GUANYLAMINO)-4,5-DIHYDROPYRIMIDINE HAVING AT LEAST ONE HYDROCARBON SUBSTITUENT SELECTED FROM THE GROUP CONSISTING OF ALKYL AND ARYL RADICALS.
Claim 3
Dependent Claim
35 words
A HYDROCARBON OIL NORMALLY SUBJECT TO OXIDATIVE DETERIORATION CONTAINING, AS AN INHIBITOR THEREFOR, A SMALL AMOUNT OF A GUANYLAMINO-4,5-DIHYDROPYRIMIDINE HAVING AT LEAST ONE HYDROCARBON SUBSTITUENT SELECTED FROM THE GROUP CONSISTING OF ALKYL AND ARYL RADICALS.
Claim 4
Dependent Claim
35 words
A HYDROCARBON OIL NORMALLY SUBJECT TO OXIDATIVE DETERIORATION CONTAINING, AS AN INHIBITOR THEREFOR, A SMALL AMOUNT OF A GUANYLAMINO-4,5-DIHYDROPYRIMIDINE HAVING AT LEAST ONE HYDROCARBON SUBSTITUENT SELECTED FROM THE GROUP CONSISTING OF ALKYL AND ARYL RADICALS.
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) | 1959-07-10 | 1960-01-09 | 1960-07-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-07-10 | 1964-01-09 | 1964-07-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-07-10 | 1968-01-09 | 1968-07-10 | $7700.00 | Window Closed / Lapsed |