Patent US2539429A successfully refreshed from Google Patents.
US2539429A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of producing a composition of matter in the nature of paint color base
Assignee: Seidlitz Paint and Varnish Co
•
Filing: 1947-10-27
•
Granted: 1951-01-30
•
Expires: 1967-10-27
Abstract
No abstract record available.
Inventors
- 👤 Jensen Otto
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 21:29
CPC Classifications
C; C09; C09B; C09B67/00; C09B67/0071; C09B67/0092; C09B67/0095
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
112 words
THE METHOD OF PREPARING A COLOR BASE POWDER FOR USE IN TINTING PAINTS WHICH COMPRISES THE STEPS OF DISSOLVING A WATER INSOLUBLE RESIN IN A WATER SOLUBLE SOLVENT FOR SAID RESIN, MIXING A PIGMENT WITH SAID RESIN SOLUTION, GRINDING SAID MIXTURE TO DISPERSE THE PIGMENT THROUGHOUT SAID RESIN SOLUTION AND TO FORM A FINELY DIVIDED MASS OF PARTICLES COMPRISING DISSOLVED RESIN HAVING A PIGMENT DISPERSED THEREIN, ADDING WATER TO SAID MASS OF FINELY DIVIDED PARTICLES TO FORM A SLURRY AND EXTRACT THE WATER SOLUBLE SOLVENT FROM SAID RESIN, FILTERING SAID SLURRY TO RECOVER A MASS OF FINELY DIVIDED PARTICLES OF SOLVENT-FREE PIGMENTED RESIN, DRYING SAID LAST NAMED PARTICLES, AND PULVERIZING SAID PARTICLES.
Claim 2
Independent Claim
112 words
THE METHOD OF PREPARING A COLOR BASE POWDER FOR USE IN TINTING PAINTS WHICH COMPRISES THE STEPS OF DISSOLVING A WATER INSOLUBLE RESIN IN A WATER SOLUBLE SOLVENT FOR SAID RESIN, MIXING A PIGMENT WITH SAID RESIN SOLUTION, GRINDING SAID MIXTURE TO DISPERSE THE PIGMENT THROUGHOUT SAID RESIN SOLUTION AND TO FORM A FINELY DIVIDED MASS OF PARTICLES COMPRISING DISSOLVED RESIN HAVING A PIGMENT DISPERSED THEREIN, ADDING WATER TO SAID MASS OF FINELY DIVIDED PARTICLES TO FORM A SLURRY AND EXTRACT THE WATER SOLUBLE SOLVENT FROM SAID RESIN, FILTERING SAID SLURRY TO RECOVER A MASS OF FINELY DIVIDED PARTICLES OF SOLVENT-FREE PIGMENTED RESIN, DRYING SAID LAST NAMED PARTICLES, AND PULVERIZING SAID PARTICLES.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-01-29 | 1954-07-31 | 1955-01-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-01-29 | 1958-07-31 | 1959-01-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-01-29 | 1962-07-31 | 1963-01-30 | $7700.00 | Window Closed / Lapsed |