US2648642A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Medium oil alkyd resin surface coating materials and processes for preparing the same
Assignee: Wyeth Holdings LLC
•
Filing: 1950-01-21
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Granted: 1953-08-11
•
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 15:29
CPC Classifications
C; C08; C08L; C08L61/00; C08L61/20; C08L61/26; C09; C09D; C09D167/00; C09D167/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
49 words
A COMPOSITION OF MATTER COMPRISING A COMPATIBLE BLEND OF ABOUT 10-50 PARTS OF AN AMINOPLAST RESIN SELECTED FROM THE GROUP CONSISTING OF MELAMINE-ALDEHYDE RESINS AND UREA-ALDEHYDE RESINS, ABOUT 90-50 PARTS OF AN ALKYD RESIN MODIFIED WITH 26%-50% BY WEIGHT OF A MATERIAL SELECTED FROM THE GROUP CONSISTING OF SEMI-DRYING
Claim 2
Dependent Claim
49 words
A COMPOSITION OF MATTER COMPRISING A COMPATIBLE BLEND OF ABOUT 10-50 PARTS OF AN AMINOPLAST RESIN SELECTED FROM THE GROUP CONSISTING OF MELAMINE-ALDEHYDE RESINS AND UREA-ALDEHYDE RESINS, ABOUT 90-50 PARTS OF AN ALKYD RESIN MODIFIED WITH 26%-50% BY WEIGHT OF A MATERIAL SELECTED FROM THE GROUP CONSISTING OF SEMI-DRYING
References Cited (Backward Citations)
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Cited
US2246095A
Cited
US2218474A
Cited
US2294590A
Cited
GB555148A
Cited
US2378365A
Cited
US2574659A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-08-10 | 1957-02-09 | 1957-08-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-08-10 | 1961-02-09 | 1961-08-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-08-10 | 1965-02-09 | 1965-08-11 | $7700.00 | Window Closed / Lapsed |