Patent US2579980A successfully refreshed from Google Patents.
US2579980A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Benzoguanamine resin surface coating materials and processes for preparing the same
Assignee: Wyeth Holdings LLC
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Filing: 1950-01-21
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Granted: 1951-12-25
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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
2026-10-23 20:11
CPC Classifications
C; C09; C09D; C09D167/00; C09D167/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
67 words
A COATING COMPOSITION, CAPABLE OF YIELDING ON BAKING A NON-CRAWLING FILM COMPRISING A COMPATIBLE BLEND OF 20-40 PARTS OF A ZENZOGUANAMINE ALDEHYDE RESIN, ABOUT 80-60 PARTS OF AN ALKYD RESIN, ABOUT 0.5% BY WEIGHT OF A MODIFIER COMPRISING 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 AND A SOLVENT.
Claim 2
Dependent Claim
67 words
A COATING COMPOSITION, CAPABLE OF YIELDING ON BAKING A NON-CRAWLING FILM COMPRISING A COMPATIBLE BLEND OF 20-40 PARTS OF A ZENZOGUANAMINE ALDEHYDE RESIN, ABOUT 80-60 PARTS OF AN ALKYD RESIN, ABOUT 0.5% BY WEIGHT OF A MODIFIER COMPRISING 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 AND A SOLVENT.
References Cited (Backward Citations)
US2218474A
Cited
FR871893A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-12-24 | 1955-06-25 | 1955-12-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-12-24 | 1959-06-25 | 1959-12-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-12-24 | 1963-06-25 | 1963-12-25 | $7700.00 | Window Closed / Lapsed |