US3267060A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Latex of ethylene propylene copolymer
Assignee: Hercules Powder Co
•
Filing: 1960-10-27
•
Granted: 1966-08-16
•
Expires: 1980-10-27
Abstract
No abstract record available.
Inventors
- 👤 Stearns T Putnam
- 👤 Harold M Spurlin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 09:11
CPC Classifications
D; D21; D21H; D21H19/00; D21H19/36; D21H19/44; D21H19/56; C; C09; C09D; C09D123/00; C09D123/02; C09D123/16
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
58 words
A PAPER COATING COLOR COMPRISING AN AQUEOUS DISPERSION OF SUBSTANTIAL QUANTITIES OF A PIGMENT AND AN ADHESIVE, SAID ADHESIVE CONTAINING AT LEAST 10% TO WEIGHT OF A LATEX OF AN ETHYLENE PROPYLENE COPOLYMER, SAID COPOLYMER CONTAINING FROM ABOUT 20 TO ABOUT 45 MOLE PERCENT PROPYLENE AND HAVING A REDUCED SPECIFIC VISCOSITY OF FROM ABOUT 1 TO ABOUT 7.
Claim 2
Dependent Claim
58 words
A PAPER COATING COLOR COMPRISING AN AQUEOUS DISPERSION OF SUBSTANTIAL QUANTITIES OF A PIGMENT AND AN ADHESIVE, SAID ADHESIVE CONTAINING AT LEAST 10% TO WEIGHT OF A LATEX OF AN ETHYLENE PROPYLENE COPOLYMER, SAID COPOLYMER CONTAINING FROM ABOUT 20 TO ABOUT 45 MOLE PERCENT PROPYLENE AND HAVING A REDUCED SPECIFIC VISCOSITY OF FROM ABOUT 1 TO ABOUT 7.
References Cited (Backward Citations)
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US2313144A
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GB578584A
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US2449489A
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US2486756A
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US2699432A
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US2780617A
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US2700663A
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US2726231A
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US2773053A
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US3073790A
Cited
US3143537A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-08-15 | 1970-02-14 | 1970-08-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-08-15 | 1974-02-14 | 1974-08-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-08-15 | 1978-02-14 | 1978-08-16 | $7700.00 | Window Closed / Lapsed |