US2965622A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Diester of an unsaturated monocarboxylic acid and a di (hydroxy) compound of a tetra-alkylbenzene, and polymers thereof
Assignee: Shell USA Inc
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Filing: 1956-02-27
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Granted: 1960-12-20
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Expires: 1976-02-27
Abstract
No abstract record available.
Inventors
- 👤 Calvin E Pannell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 21:22
CPC Classifications
C; C08; C08F; C08F20/00; C08F20/02; C08F20/10; C08F20/12; C08F20/16
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
54 words
A DIESTER OF A MONOCARBOXYLIC ACID SELECTED FROM THE GROUP CONSISTING OF THE ALKENOIC ACIDS, CHLORO-SUBSTITUTED ALKENOIC ACIDS, AND ALKADIENOIC ACIDS, SAID ACID CONTAINING FROM 3 TO 12 CARBON ATOMS PER MOLECULE, AND A DI(HYDROXYALKYL) COMPOUND OF THE GROUP CONSISTING OF DI(HYDROXYALKYL) TETRA-ALKYL BENZENES AND DI(HYDROXYALKOXYALKYL) TETRA-ALKYL BENZENES, HAVING THE FOLLOWING STRUCTURAL FORMULA, RESPECTIVELY,
Claim 2
Dependent Claim
54 words
A DIESTER OF A MONOCARBOXYLIC ACID SELECTED FROM THE GROUP CONSISTING OF THE ALKENOIC ACIDS, CHLORO-SUBSTITUTED ALKENOIC ACIDS, AND ALKADIENOIC ACIDS, SAID ACID CONTAINING FROM 3 TO 12 CARBON ATOMS PER MOLECULE, AND A DI(HYDROXYALKYL) COMPOUND OF THE GROUP CONSISTING OF DI(HYDROXYALKYL) TETRA-ALKYL BENZENES AND DI(HYDROXYALKOXYALKYL) TETRA-ALKYL BENZENES, HAVING THE FOLLOWING STRUCTURAL FORMULA, RESPECTIVELY,
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-12-20 | 1964-06-20 | 1964-12-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-12-20 | 1968-06-20 | 1968-12-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-12-20 | 1972-06-20 | 1972-12-20 | $7700.00 | Window Closed / Lapsed |