Patent US3062829A successfully refreshed from Google Patents.
US3062829A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Anionic bituminous emulsions
Assignee: California Research LLC
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Filing: 1960-02-23
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Granted: 1962-11-06
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Expires: 1980-02-23
Abstract
No abstract record available.
Inventors
- 👤 James R Wright
- 👤 Edward W Mertens
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 03:45
CPC Classifications
C; C08; C08L; C08L95/00; C08L95/005
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
132 words
AN OIL-IN-WATER TYPE ANIONIC BITUMINOUS EMULSION CONSISTING ESSENTIALLY OF ROM ABOUT 50 TO ABOUT 75% BY WEIGHT OF BITUMEN; AN ALKALI METAL BASE IN AN AMOUNT SUFFICIENT TO EMULSIFY THE BITUMEN IN WATER AND TO MAKE THE PH OF THE FINISHED EMULSION ALKALINE; FROM ABOUT 0.1 TO ABOUT 1.5% BY WEIGHT OF A POLYAMIDE PRODUCT OF CONDENSATION OF POLYMERIZEZZD LINOLEIC ACID AND A POLYALKYLENE POLYAMINE, THE MOLECULE OF WHICH IS FORMED BY C2-C4 ALKYLENE UNITS LESS THAN 5 IN NUMBER AND ONE UNIT LESS THAN THE NUMBER OF AMINE UNITS, SAID CONDENSATION PRODUCT BEING CHARACTERIZED BY AN AVERAGE MOLECULAR WEIGHT IN THE RANGE FROM ABOUT 3,000 TO ABOUT 6,500 AND A SOFTENING POINT LESS THAN ABOUT 300*F.; AND WATER, AS THE CONTINOUS PHASE OF THE EMULSION, TO MAKE UP 100% BY WEIGHT.
Claim 2
Dependent Claim
132 words
AN OIL-IN-WATER TYPE ANIONIC BITUMINOUS EMULSION CONSISTING ESSENTIALLY OF ROM ABOUT 50 TO ABOUT 75% BY WEIGHT OF BITUMEN; AN ALKALI METAL BASE IN AN AMOUNT SUFFICIENT TO EMULSIFY THE BITUMEN IN WATER AND TO MAKE THE PH OF THE FINISHED EMULSION ALKALINE; FROM ABOUT 0.1 TO ABOUT 1.5% BY WEIGHT OF A POLYAMIDE PRODUCT OF CONDENSATION OF POLYMERIZEZZD LINOLEIC ACID AND A POLYALKYLENE POLYAMINE, THE MOLECULE OF WHICH IS FORMED BY C2-C4 ALKYLENE UNITS LESS THAN 5 IN NUMBER AND ONE UNIT LESS THAN THE NUMBER OF AMINE UNITS, SAID CONDENSATION PRODUCT BEING CHARACTERIZED BY AN AVERAGE MOLECULAR WEIGHT IN THE RANGE FROM ABOUT 3,000 TO ABOUT 6,500 AND A SOFTENING POINT LESS THAN ABOUT 300*F.; AND WATER, AS THE CONTINOUS PHASE OF THE EMULSION, TO MAKE UP 100% BY WEIGHT.
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) | 1965-11-05 | 1966-05-07 | 1966-11-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-11-05 | 1970-05-07 | 1970-11-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-11-05 | 1974-05-07 | 1974-11-06 | $7700.00 | Window Closed / Lapsed |