Patent US3890294A successfully refreshed from Google Patents.
US3890294A
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Azo containing polybutadienes
Assignee: Arkema Inc
•
Filing: 1973-08-08
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Granted: 1975-06-17
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Expires: 1993-08-08
Abstract
Abstract A. A novel class of azo compounds
Inventors
- 👤 Chester Stephen Sheppard
- 👤 Ronald Edward Macleay
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 11:50
CPC Classifications
C; C08; C08L; C08L67/00; C08L67/06; C08C; C08C19/00; C08C19/30; C08C19/34; C08C19/38; C08F; C08F283/00; C08F283/01; C08F293/00; C08F8/00; C08F8/30; C08G; C08G63/00; C08G63/68; C08G63/685; C08G63/6854; C08G63/6856; C08G65/00; C08G65/02; C08G65/32; C08G65/329; C08G65/333; C08G65/33365; C08G73/00; C08G81/00; C08G81/02
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
6 words
A POLYMER HAVING THE GENERALLY FORMULA:
Claim 2
Dependent Claim
6 words
A POLYMER HAVING THE GENERALLY FORMULA:
Claim 3
Dependent Claim
55 words
R6 IS LOWER ALKYL; M. R7 OD H, ALKYL OR CYCLOALKYL OF 1-10 CARBONS, OR AROMATIC OF 6-12 CARBONS; N. R8 IS TERTIARY ALIPHATIC; O. R9 IS LOWER ALKYLENE; AND P. R2 AND R2" WHEN TAKEN TOGETHER WITH THE TERTIARY CARBON ATOM CONNECTED TO THE AZO NITROGEN ATOM, FORM A CYCLOALIPHATIC TRIRADICAL OF 3-10 CARBONS.
Claim 4
Dependent Claim
55 words
R6 IS LOWER ALKYL; M. R7 OD H, ALKYL OR CYCLOALKYL OF 1-10 CARBONS, OR AROMATIC OF 6-12 CARBONS; N. R8 IS TERTIARY ALIPHATIC; O. R9 IS LOWER ALKYLENE; AND P. R2 AND R2" WHEN TAKEN TOGETHER WITH THE TERTIARY CARBON ATOM CONNECTED TO THE AZO NITROGEN ATOM, FORM A CYCLOALIPHATIC TRIRADICAL OF 3-10 CARBONS.
Claim 5
Dependent Claim
6 words
A polymer having the general formula:
Claim 6
Dependent Claim
6 words
A polymer having the general formula:
Claim 7
Dependent Claim
2 words
The polymer
Claim 8
Dependent Claim
2 words
The polymer
References Cited (Backward Citations)
US3274166A
Cited
US3758426A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-06-16 | 1978-12-16 | 1979-06-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-06-16 | 1982-12-16 | 1983-06-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-06-16 | 1986-12-16 | 1987-06-17 | $7700.00 | Window Closed / Lapsed |