US2550652A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Diallyl cyanamide copolymer compositions
Assignee: Wyeth Holdings LLC
•
Filing: 1949-10-12
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Granted: 1951-04-24
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Expires: 1969-10-12
Abstract
No abstract record available.
Inventors
- 👤 Erhart K Drechsel
- 👤 John J Padbury
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:35
CPC Classifications
C; C08; C08F; C08F226/00; C08F226/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
54 words
A POLYMERIZABLE COMPOSITION COMPRISING, BY WEIGHT, (1) FROM 1% TO 75% OF DIALLYL CYANAMIDE, (2) FROM 25% TO 99% OF A COMPOUND WHICH IS DIFFERENT FROM THE COMPOUND OF (1), IS COPOLYMERIZABLE THEREWITH AND WHICH CONTAINS A CH2=C< GROUPING, AND (3) A CATALYST FOR ACCELERATING THE COPOLYMERIZATION OF THE INGREDIENTS OF (1) AND (2).
Claim 2
Dependent Claim
54 words
A POLYMERIZABLE COMPOSITION COMPRISING, BY WEIGHT, (1) FROM 1% TO 75% OF DIALLYL CYANAMIDE, (2) FROM 25% TO 99% OF A COMPOUND WHICH IS DIFFERENT FROM THE COMPOUND OF (1), IS COPOLYMERIZABLE THEREWITH AND WHICH CONTAINS A CH2=C< GROUPING, AND (3) A CATALYST FOR ACCELERATING THE COPOLYMERIZATION OF THE INGREDIENTS OF (1) AND (2).
References Cited (Backward Citations)
US1659793A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-04-23 | 1954-10-23 | 1955-04-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-04-23 | 1958-10-23 | 1959-04-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-04-23 | 1962-10-23 | 1963-04-24 | $7700.00 | Window Closed / Lapsed |