US3065200A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stabilized compositions comprised of copolymers of alkenyl aromatics and acrylonitrile
Assignee: Dow Chemical Co
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Filing: 1958-07-09
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Granted: 1962-11-20
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Expires: 1978-07-09
Abstract
No abstract record available.
Inventors
- 👤 Carlton R Johansson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 22:37
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/16; C08K5/17
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
47 words
COMPOSITION CONSISTING ESSENTIALLY OF (1) A COPOLYMER OF (A) BETWEEN ABOUT 1 AND ABOUT 40 WEIGHT PERCENT, BASED ON THE COPOLYMER WEIGHT, OF ACRYLONITRILE POLYM ERIZED WITH (B) BETWEEN ABOUT 99 AND 60 WEIGHT PERCEN, BASED ON THE COPOLYMER WEIGHT, OF AN ALKENYL AROMATIC OF THE FORMULA:
Claim 2
Dependent Claim
47 words
COMPOSITION CONSISTING ESSENTIALLY OF (1) A COPOLYMER OF (A) BETWEEN ABOUT 1 AND ABOUT 40 WEIGHT PERCENT, BASED ON THE COPOLYMER WEIGHT, OF ACRYLONITRILE POLYM ERIZED WITH (B) BETWEEN ABOUT 99 AND 60 WEIGHT PERCEN, BASED ON THE COPOLYMER WEIGHT, OF AN ALKENYL AROMATIC OF 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) | 1965-11-19 | 1966-05-21 | 1966-11-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-11-19 | 1970-05-21 | 1970-11-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-11-19 | 1974-05-21 | 1974-11-20 | $7700.00 | Window Closed / Lapsed |