US2912416A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Amide containing copolymers and their preparation
Assignee: Shell Development Co
•
Filing: 1954-07-12
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Granted: 1959-11-10
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Expires: 1974-07-12
Abstract
No abstract record available.
Inventors
- 👤 Newey Herbert Alfred
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 05:18
CPC Classifications
C; C08; C08F; C08F20/00; C08F20/02; C08F20/52; C08F20/54; C08F22/00; C08F22/36; C08F8/00; C08F8/30; C08F8/32
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
86 words
AN AMIDE-CONTAINING POLYMERIC PRODUCT COMPRISING A COPOLYMER OF (1) AN ALKENE-1 CONTAINING FROM 10 TO 30 CARBON ATOMS, (2) AN ESTER OF AN ETHYLENICALLY UNSATURATED CARBOXYLIC ACID AND A ALKANOL CONTAINING NO MORE THAN 4 CARBON ATOMS, AND (3) AN N-SUBSTITUTED AMIDE OF AN ETHYLENICALLY UNSATURATED CARBONXYLIC ACID, WHICH ACID IS THE SAME AS THAT ACID USED IN MAKING ON THE ESTER DEFINED IN (2) ABOVE, WHEREIN THE SUBSTITUENT ON THE NITROGEN ATOMS CONTAINS A POLAR GROUP SELECTED FROM THE GROUP CONSISTING OF -NR2, -OH, -COOH,
Claim 2
Dependent Claim
86 words
AN AMIDE-CONTAINING POLYMERIC PRODUCT COMPRISING A COPOLYMER OF (1) AN ALKENE-1 CONTAINING FROM 10 TO 30 CARBON ATOMS, (2) AN ESTER OF AN ETHYLENICALLY UNSATURATED CARBOXYLIC ACID AND A ALKANOL CONTAINING NO MORE THAN 4 CARBON ATOMS, AND (3) AN N-SUBSTITUTED AMIDE OF AN ETHYLENICALLY UNSATURATED CARBONXYLIC ACID, WHICH ACID IS THE SAME AS THAT ACID USED IN MAKING ON THE ESTER DEFINED IN (2) ABOVE, WHEREIN THE SUBSTITUENT ON THE NITROGEN ATOMS CONTAINS A POLAR GROUP SELECTED FROM THE GROUP CONSISTING OF -NR2, -OH, -COOH,
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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) | 1962-11-09 | 1963-05-11 | 1963-11-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-11-09 | 1967-05-11 | 1967-11-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-11-09 | 1971-05-11 | 1971-11-10 | $7700.00 | Window Closed / Lapsed |