US2650207A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Compositions comprising copolymers of vinylimides and unsaturated alkyd resins and process of making same
Assignee: Ellis Foster Co
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Filing: 1949-11-17
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Granted: 1953-08-25
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Expires: 1969-11-17
Abstract
No abstract record available.
Inventors
- 👤 John B Rust
- 👤 William B Canfield
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 03:57
CPC Classifications
C; C08; C08F; C08F222/00; C08F222/36; C08F222/40; C08L; C08L67/00; Y; Y10; Y10S; Y10S525/00; Y10S525/937
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
49 words
A HARDENABLE COMPOSITION, HAVING STORAGE STABILITY AND CURING RAPIDLY AT TEMPERATURES FROM 120* TO 200* C., COMPRISING, AS SOLE REACTIVE COMPONENTS, A POLYMERIZABLE UNSATURATED ALKYD RESIN OBTAINED BY REACTION OF INGREDIENTS COMPRISING A DIHYDRIC ALCOHOL AND AN ALPHA UNSATURATED ALPHA BETA DICARBOXYLIC ACID, A SOLID N-VINYLIMIDE OF THE FORMULA
Claim 2
Dependent Claim
49 words
A HARDENABLE COMPOSITION, HAVING STORAGE STABILITY AND CURING RAPIDLY AT TEMPERATURES FROM 120* TO 200* C., COMPRISING, AS SOLE REACTIVE COMPONENTS, A POLYMERIZABLE UNSATURATED ALKYD RESIN OBTAINED BY REACTION OF INGREDIENTS COMPRISING A DIHYDRIC ALCOHOL AND AN ALPHA UNSATURATED ALPHA BETA DICARBOXYLIC ACID, A SOLID N-VINYLIMIDE 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) | 1956-08-24 | 1957-02-23 | 1957-08-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-08-24 | 1961-02-23 | 1961-08-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-08-24 | 1965-02-23 | 1965-08-25 | $7700.00 | Window Closed / Lapsed |