Patent US2570037A successfully refreshed from Google Patents.
US2570037A
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Esters of aliphatic dibasic acids and ether-alcohols containing a branched chain in the glycol group
Assignee: Standard Oil Development Co
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Filing: 1948-08-03
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Granted: 1951-10-02
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Expires: 1968-08-03
Abstract
No abstract record available.
Inventors
- 👤 Jr Paul V Smith
- 👤 Jr Fred Knoth
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 19:13
CPC Classifications
C; C10; C10M; C10M3/00; C07; C07C; C07C69/00; C07C69/34; C07C69/44; C07C69/50; C10M2207/00; C10M2207/28; C10M2207/282; C10M2207/34; C10M2209/00; C10M2209/10; C10M2209/103; C10M2209/105; C10M2209/106; C10N; C10N2020/00; C10N2020/01; C10N2030/00; C10N2030/08; C10N2040/00; C10N2040/12; C10N2040/13
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
7 words
A COMPOSITION OF MATTER HAVING THE FORMULA
Claim 2
Dependent Claim
7 words
A COMPOSITION OF MATTER HAVING THE FORMULA
References Cited (Backward Citations)
US1706639A
Cited
US2118506A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-10-01 | 1955-04-02 | 1955-10-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-10-01 | 1959-04-02 | 1959-10-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-10-01 | 1963-04-02 | 1963-10-02 | $7700.00 | Window Closed / Lapsed |