US3035031A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Acrylonitrile copolymers
Assignee: Wyeth Holdings LLC
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Filing: 1960-02-24
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Granted: 1962-05-15
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Expires: 1980-02-24
Abstract
No abstract record available.
Inventors
- 👤 Robert D Evans
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 06:23
CPC Classifications
C; C08; C08F; C08F220/00; C08F220/02; C08F220/42; C08F220/44
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
40 words
A PRODUCT COMPRISING OF FIBER-FORMABLE COPOLYMER OBTAINED BY POLYMERIZATION OF A MIXTURE OF COPOLYMERIZABLE INGREDIENTS INCLUDING (1) FROM 75 TO 99 MOLE PERCENT OF ACRYLONTRILE AND (2) FROM 1 TO 15 MOLE PERCENT OF A COMPOUND REPRESENTED BY THE FORMULA
Claim 2
Dependent Claim
40 words
A PRODUCT COMPRISING OF FIBER-FORMABLE COPOLYMER OBTAINED BY POLYMERIZATION OF A MIXTURE OF COPOLYMERIZABLE INGREDIENTS INCLUDING (1) FROM 75 TO 99 MOLE PERCENT OF ACRYLONTRILE AND (2) FROM 1 TO 15 MOLE PERCENT OF A COMPOUND REPRESENTED BY 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) | 1965-05-14 | 1965-11-13 | 1966-05-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-05-14 | 1969-11-13 | 1970-05-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-05-14 | 1973-11-13 | 1974-05-15 | $7700.00 | Window Closed / Lapsed |