Patent US2615819A successfully refreshed from Google Patents.
US2615819A
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Slow-setting, oil-in-water bituminous emulsion
Assignee: American Bitumuls and Asphalt Co
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Filing: 1950-08-14
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Granted: 1952-10-28
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Expires: 1970-08-14
Abstract
No abstract record available.
Inventors
- 👤 Donald N Manzer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 20:20
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/04; C08K5/09; C08K5/098
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
66 words
A SLOW-SETTING OIL-IN-WATER TYPE EMULSION RELATIVELY STABLE AGAINST BREAKDOWN UPON CONTACT WITH ELECTROLYTES CONSISTING ESSENTIALLY OF WATER; A WATER-INSOLUBLE, WATER-DISPERSIBLE, ORGANIC THERMOPLASTIC BITUMINOUS SUBSTANCE HAVING BEEN EMULSIFIED THEREIN AT A PH ABOVE ABOUT 9; AND A SMALL AMOUNT, SUFFICIENT SUBSTANTIALLY TO PROMOTE ADHESION OF THE EMULSIFIED BITUMINOUS SUBSTANCE, OF AT LEAST ONE MATERIAL OF THE GROUP CONSISTING OF AMMONIUM FORMATE, AMMONIUM ACETATE, AMMONIUM OXALATE, AMMONIUM GLUTAMATE.
Claim 2
Dependent Claim
66 words
A SLOW-SETTING OIL-IN-WATER TYPE EMULSION RELATIVELY STABLE AGAINST BREAKDOWN UPON CONTACT WITH ELECTROLYTES CONSISTING ESSENTIALLY OF WATER; A WATER-INSOLUBLE, WATER-DISPERSIBLE, ORGANIC THERMOPLASTIC BITUMINOUS SUBSTANCE HAVING BEEN EMULSIFIED THEREIN AT A PH ABOVE ABOUT 9; AND A SMALL AMOUNT, SUFFICIENT SUBSTANTIALLY TO PROMOTE ADHESION OF THE EMULSIFIED BITUMINOUS SUBSTANCE, OF AT LEAST ONE MATERIAL OF THE GROUP CONSISTING OF AMMONIUM FORMATE, AMMONIUM ACETATE, AMMONIUM OXALATE, AMMONIUM GLUTAMATE.
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Cited
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-10-28 | 1956-04-28 | 1956-10-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-10-28 | 1960-04-28 | 1960-10-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-10-28 | 1964-04-28 | 1964-10-28 | $7700.00 | Window Closed / Lapsed |