Patent US3002844A successfully refreshed from Google Patents.
US3002844A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Issued
Assignee: —
•
Filing: —
•
Granted: 1961-10-03
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Expires: 1978-10-03
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 10:10
CPC Classifications
D; D21; D21H; D21H19/00; D21H19/36; D21H19/44; D21H19/56; D21H19/60; D21H19/50; D21H19/52
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
171 words
A PAPER COATING COMPOSITION WHICH CONSISTS ESSENTIALLY OF A SUSPENSION OF A PAPER PIGMENT AND FINELY SUBDIVIDED PARTICLES OF PROTEIN IN A LIQUID HYDROCARBON-WATER EMULSION, SAID PROTEIN AND PIGMENT FORMING A CO-PRECIPITATE ON THE BREAKING OF THE EMULSION WITH THE PARTICLES OF PROTEIN ADHERING TO THE PIGMENT, SAID SUSPENSION CONSISTING ESSENTIALLY OF A DISPERSION OF FROM 5 TO 20 PARTS OF AN ALKALI SOLUBLE WATER INSOLUBLE PROTEIN SELECTED FROM THE GROUP CONSISTING OF ALPHA PROTEIN, SOYA PROTEIN AND CASEIN AND MIXTURES AND EQUIVALENTS THEREOF, BETWEEN 80 AND 95 PARTS OF WATER, BETWEEN 5 AND 60 PARTS OF A LIQUID HYDROCARBON HAVING A FLASH POINT BETWEEN 100*F. AND 250*F. AND BETWEEN 10 AND 95 PARTS OF A GUM PIGMENT MIXTURE WHERE SAID GUM PIGMENT MIXTURE IS MADE UP OF BETWEEN AND 75 PARTS OF A PAPER PIGMENT, BETWEEN 5 AND 75 PARTS OF A SOLUBLE GUM SELECTED FROM THE GROUP CONSISTING OF ANIMAL GLUE, METHYL CELLULOSE AND POLYVINYL ALCOHOL AND MIXTURES AND EQUIVALENTS THEREOF AND BETWEEN 40 AND 95 PARTS OF WATER.
Claim 2
Dependent Claim
171 words
A PAPER COATING COMPOSITION WHICH CONSISTS ESSENTIALLY OF A SUSPENSION OF A PAPER PIGMENT AND FINELY SUBDIVIDED PARTICLES OF PROTEIN IN A LIQUID HYDROCARBON-WATER EMULSION, SAID PROTEIN AND PIGMENT FORMING A CO-PRECIPITATE ON THE BREAKING OF THE EMULSION WITH THE PARTICLES OF PROTEIN ADHERING TO THE PIGMENT, SAID SUSPENSION CONSISTING ESSENTIALLY OF A DISPERSION OF FROM 5 TO 20 PARTS OF AN ALKALI SOLUBLE WATER INSOLUBLE PROTEIN SELECTED FROM THE GROUP CONSISTING OF ALPHA PROTEIN, SOYA PROTEIN AND CASEIN AND MIXTURES AND EQUIVALENTS THEREOF, BETWEEN 80 AND 95 PARTS OF WATER, BETWEEN 5 AND 60 PARTS OF A LIQUID HYDROCARBON HAVING A FLASH POINT BETWEEN 100*F. AND 250*F. AND BETWEEN 10 AND 95 PARTS OF A GUM PIGMENT MIXTURE WHERE SAID GUM PIGMENT MIXTURE IS MADE UP OF BETWEEN AND 75 PARTS OF A PAPER PIGMENT, BETWEEN 5 AND 75 PARTS OF A SOLUBLE GUM SELECTED FROM THE GROUP CONSISTING OF ANIMAL GLUE, METHYL CELLULOSE AND POLYVINYL ALCOHOL AND MIXTURES AND EQUIVALENTS THEREOF AND BETWEEN 40 AND 95 PARTS OF WATER.
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) | 1964-10-02 | 1965-04-03 | 1965-10-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-10-02 | 1969-04-03 | 1969-10-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-10-02 | 1973-04-03 | 1973-10-03 | $7700.00 | Window Closed / Lapsed |