Patent US2528769A successfully refreshed from Google Patents.
US2528769A
Expired / Lapsed
US
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Reaction product of haloalkylthiophenes and hydroxyaryl compounds
Assignee: ExxonMobil Oil Corp
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Filing: 1947-05-28
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Granted: 1950-11-07
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Expires: 1967-05-28
Abstract
No abstract record available.
Inventors
- 👤 John H Mccracken
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 04:53
CPC Classifications
C; C07; C07D; C07D333/00; C07D333/02; C07D333/04; C07D333/06; C07D333/14; C07D333/16; C10; C10M; C10M1/00; C10M1/08; C10M2219/00; C10M2219/10; C10M2219/102; C10M2219/104; C10M2219/106; C10N; C10N2040/00; C10N2040/135; C10N2040/14; C10N2040/16; C10N2040/17; C10N2070/00; C10N2070/02
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
24 words
A MINERAL OIL CONTAINING A MINOR PROPORTION, SUFFICIENT TO STABILIZE THE OIL AGAINST DISCOLORATION AND OXIDATION, OF A COMPOSITION OF MATTER HAVING THE 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) | 1953-11-06 | 1954-05-08 | 1954-11-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-11-06 | 1958-05-08 | 1958-11-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-11-06 | 1962-05-08 | 1962-11-07 | $7700.00 | Window Closed / Lapsed |