US2760955A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vinyl sulfonamide-acrylonitrile copolymers
Assignee: Monsanto Chemicals Ltd
•
Filing: 1953-05-01
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Granted: 1956-08-28
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Expires: 1973-05-01
Abstract
No abstract record available.
Inventors
- 👤 Harold F Park
- 👤 Robert M Dickey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 15:09
CPC Classifications
C; C08; C08F; C08F220/00; C08F220/02; C08F220/42; C08F220/44; C08F220/46
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
19 words
A COPOLYMER OF FROM 85 TO 99 PARTS OF ACRYLONITRILE AND FROM 15 TO 1 PARTS OF VINYL SULFONAMIDE.
Claim 2
Dependent Claim
19 words
A COPOLYMER OF FROM 85 TO 99 PARTS OF ACRYLONITRILE AND FROM 15 TO 1 PARTS OF VINYL SULFONAMIDE.
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) | 1959-08-28 | 1960-02-27 | 1960-08-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-08-28 | 1964-02-27 | 1964-08-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-08-28 | 1968-02-27 | 1968-08-28 | $7700.00 | Window Closed / Lapsed |