Patent US2512580A successfully refreshed from Google Patents.
US2512580A
Expired / Lapsed
US
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Slow-setting bituminous emulsions
Assignee: Stancal Asphalt and Bitumuls Co
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Filing: 1948-06-14
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Granted: 1950-06-20
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Expires: 1968-06-14
Abstract
No abstract record available.
Inventors
- 👤 Paul E Mccoy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 04:49
CPC Classifications
C; C08; C08L; C08L95/00; C08L95/005
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
90 words
A SLOW-SETTING BITUMINOUS EMULSION CAPABLE OF PASSING A. S. T. M. D631-46 SPECIFICATIONS COMPRISING WATER AS THE CONTINUOUS PHASE, A BITUMINOUS SUBSTANCE EMULSIFIED THEREIN AS THE DISPERSED PHASE, A STABLIZING AGENT TO MAINTAIN SAID BITUMINOUS SUBSTANCE DESPERSED IN THE CONTINOUS PHASE, AND A SMALL AMOUNT SUFFICIENT TO IMPART SUBSTANTIALLY IMPROVED ADHESION AND APPEARANCE CHARACTERISTICS TO SAID SLOW-SETTING BITUMINOUS EMULSION, OF SULFONATED TALL OIL, SAID SULFONATED TALL OIL HAVING BEEN ADDED AT A PH BELOW ABOUT 8.5 AND AFTER EMULSIFICATION OF THE BITUMINOUS SUBSTANCE DISPERSED PHASE IN THE WATER CONTINOUS PHASE.
Claim 2
Dependent Claim
90 words
A SLOW-SETTING BITUMINOUS EMULSION CAPABLE OF PASSING A. S. T. M. D631-46 SPECIFICATIONS COMPRISING WATER AS THE CONTINUOUS PHASE, A BITUMINOUS SUBSTANCE EMULSIFIED THEREIN AS THE DISPERSED PHASE, A STABLIZING AGENT TO MAINTAIN SAID BITUMINOUS SUBSTANCE DESPERSED IN THE CONTINOUS PHASE, AND A SMALL AMOUNT SUFFICIENT TO IMPART SUBSTANTIALLY IMPROVED ADHESION AND APPEARANCE CHARACTERISTICS TO SAID SLOW-SETTING BITUMINOUS EMULSION, OF SULFONATED TALL OIL, SAID SULFONATED TALL OIL HAVING BEEN ADDED AT A PH BELOW ABOUT 8.5 AND AFTER EMULSIFICATION OF THE BITUMINOUS SUBSTANCE DISPERSED PHASE IN THE WATER CONTINOUS PHASE.
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) | 1953-06-19 | 1953-12-19 | 1954-06-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-06-19 | 1957-12-19 | 1958-06-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-06-19 | 1961-12-19 | 1962-06-20 | $7700.00 | Window Closed / Lapsed |