Patent US2623028A successfully refreshed from Google Patents.
US2623028A
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Method of coloring amine aldehyde resin molding compositions
Assignee: Libbey Owens Ford Glass Co
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Filing: 1950-11-14
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Granted: 1952-12-23
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Expires: 1970-11-14
Abstract
No abstract record available.
Inventors
- 👤 Love Burton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 14:14
CPC Classifications
C; C08; C08J; C08J3/00; C08J3/20; C08J3/203; C08J2361/00; C08J2361/20
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
63 words
IN THE PREPARATION OF AN AMINE-ALDEHYDE MOLDING COMPOSITION FROM A DRIED FILLER IMPREGNATED WITH A HEAT-CONVERTIBLE AMINE-ALDEHYDE CONDENSATE, AN IMPROVED PROCESS OF INCORPORATING PIGMENT THEREIN WHICH COMPRISES THE STEPS OF (1) GRINDING DRIED IMPREGNATED FILLER TO A POWDER AND THEN (2) BLENDING THEREWITH A HOMOGENEOUS MIXTURE OF 0.1-100 PARTS OF PIGMENT BLENDED WITH 100 PARTS OF DRIED INPREGNATED FILLER GROUND TO A POWDER.
Claim 2
Dependent Claim
63 words
IN THE PREPARATION OF AN AMINE-ALDEHYDE MOLDING COMPOSITION FROM A DRIED FILLER IMPREGNATED WITH A HEAT-CONVERTIBLE AMINE-ALDEHYDE CONDENSATE, AN IMPROVED PROCESS OF INCORPORATING PIGMENT THEREIN WHICH COMPRISES THE STEPS OF (1) GRINDING DRIED IMPREGNATED FILLER TO A POWDER AND THEN (2) BLENDING THEREWITH A HOMOGENEOUS MIXTURE OF 0.1-100 PARTS OF PIGMENT BLENDED WITH 100 PARTS OF DRIED INPREGNATED FILLER GROUND TO A POWDER.
References Cited (Backward Citations)
US2520100A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-12-23 | 1956-06-23 | 1956-12-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-12-23 | 1960-06-23 | 1960-12-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-12-23 | 1964-06-23 | 1964-12-23 | $7700.00 | Window Closed / Lapsed |