Patent US2072060A successfully refreshed from Google Patents.
Patent US2649423A successfully refreshed from Google Patents.
US2649423A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Short oil modified alkyd resin surface coating materials comprising a polymer of aliphatic esters of alpha, beta unsaturated carboxylic acids
Assignee: Wyeth Holdings LLC
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Filing: 1950-01-21
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Granted: 1953-08-18
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Expires: 1970-01-21
Abstract
No abstract record available.
Inventors
- 👤 Frank R Spencer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 13:23
CPC Classifications
C; C09; C09D; C09D167/00; C09D167/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
79 words
A COATING COMPOSITION, CAPABLE OF YIELDING ON BAKING A NON-CRATERING FILM, COMPRISING A COMPATIBLE BLEND OF AN ALKLYD RESIN MODIFIED WITH UP TO 25% OF A MATERIAL SELECTED FROM THE GROUP CONSISTING OF SEMI-DRYING AND NON-DRYING GLYCERIDE OILS AND THEIR ACIDS, A BUTYLATED MELAMINEFORMALDEHYDE RESIN, AND FROM 0.05% TO 10% BY WEIGHT OF A POLYMERIC ALKYL ESTER OF AN ALPHA, BETA UNSATURATED CARBOXYLIC ACID, WHEREIN SAID PERCENTAGE BY WEIGHT IS BASED ON THE TOTAL WEIGHT OF THE RESIN SOLIDS.
Claim 2
Dependent Claim
79 words
A COATING COMPOSITION, CAPABLE OF YIELDING ON BAKING A NON-CRATERING FILM, COMPRISING A COMPATIBLE BLEND OF AN ALKLYD RESIN MODIFIED WITH UP TO 25% OF A MATERIAL SELECTED FROM THE GROUP CONSISTING OF SEMI-DRYING AND NON-DRYING GLYCERIDE OILS AND THEIR ACIDS, A BUTYLATED MELAMINEFORMALDEHYDE RESIN, AND FROM 0.05% TO 10% BY WEIGHT OF A POLYMERIC ALKYL ESTER OF AN ALPHA, BETA UNSATURATED CARBOXYLIC ACID, WHEREIN SAID PERCENTAGE BY WEIGHT IS BASED ON THE TOTAL WEIGHT OF THE RESIN SOLIDS.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-08-17 | 1957-02-16 | 1957-08-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-08-17 | 1961-02-16 | 1961-08-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-08-17 | 1965-02-16 | 1965-08-18 | $7700.00 | Window Closed / Lapsed |