Patent US2851429A successfully refreshed from Google Patents.
US2851429A
Expired / Lapsed
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Combination of aminoplast resins and certain alkyd resins
Assignee: Wyeth Holdings LLC
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Filing: 1957-02-07
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Granted: 1958-09-09
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Expires: 1977-02-07
Abstract
No abstract record available.
Inventors
- 👤 John C Petropoulos
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 16:40
CPC Classifications
C; C09; C09D; C09D167/00; C09D167/08; C08; C08G; C08G63/00; C08G63/02; C08G63/12; C08G63/123; C08G63/127; C08G63/13; C08G63/16; C08G63/18; C08G63/181; C08G63/185; C08L; C08L61/00; C08L61/20; C08L67/00; C08L67/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
31 words
A COMPOSITION COMPRISING A BLEND OF AN IMINOPLAST RESIN AND ALKYD RESIN, SAID ALKYD RESIN COMPRISING THE ESTERIFICATION REACTION PRODUCT OF A POLYHYDRIC ALOCOHOL AND AN ACID HAVING THE GENERAL FORMULA:
Claim 2
Dependent Claim
31 words
A COMPOSITION COMPRISING A BLEND OF AN IMINOPLAST RESIN AND ALKYD RESIN, SAID ALKYD RESIN COMPRISING THE ESTERIFICATION REACTION PRODUCT OF A POLYHYDRIC ALOCOHOL AND AN ACID HAVING THE GENERAL FORMULA:
References Cited (Backward Citations)
US2294590A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-09-08 | 1962-03-10 | 1962-09-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-09-08 | 1966-03-10 | 1966-09-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-09-08 | 1970-03-10 | 1970-09-09 | $7700.00 | Window Closed / Lapsed |