Patent US2623831A successfully refreshed from Google Patents.
US2623831A
Expired / Lapsed
US
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Antistripping agents for asphalts
Assignee: Standard Oil Development Co
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Filing: 1948-11-23
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Granted: 1952-12-30
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Expires: 1968-11-23
Abstract
No abstract record available.
Inventors
- 👤 Louis A Mikeska
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 23:17
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/36; C08K5/37; C08K5/372; C08K5/3725
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
72 words
AN IMPROVED BITUMINOUS BONDING COMPOSITION COMPRISING A MIXTURE OF ASPHALT AND AT LEAST ONE ANTI-STRIPPING ADDITION AGENT SELECTED FROM THE GROUP CONSISTING OF THE FREE AMINE BASE AND SALTS OF THE FREE AMINE BASE OF THE CONDENSATION PRODUCT OF ETHYLENE DIAMINE AND AN ALKYLTHIO SUBSTITUTED ALKYL HALIDE, SAID ALKYLTHIO, SUBSTITUTED ALKYL HALIDE CONTAINING ONLY CARBON, HYDROGEN, OXYGEN, SULFUR AND HALOGEN ELEMENTS, AND HAVING AN ALKYL RADICAL OF 10 TO 24 CARBON ATOMS.
Claim 2
Dependent Claim
72 words
AN IMPROVED BITUMINOUS BONDING COMPOSITION COMPRISING A MIXTURE OF ASPHALT AND AT LEAST ONE ANTI-STRIPPING ADDITION AGENT SELECTED FROM THE GROUP CONSISTING OF THE FREE AMINE BASE AND SALTS OF THE FREE AMINE BASE OF THE CONDENSATION PRODUCT OF ETHYLENE DIAMINE AND AN ALKYLTHIO SUBSTITUTED ALKYL HALIDE, SAID ALKYLTHIO, SUBSTITUTED ALKYL HALIDE CONTAINING ONLY CARBON, HYDROGEN, OXYGEN, SULFUR AND HALOGEN ELEMENTS, AND HAVING AN ALKYL RADICAL OF 10 TO 24 CARBON ATOMS.
References Cited (Backward Citations)
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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) | 1955-12-30 | 1956-06-30 | 1956-12-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-12-30 | 1960-06-30 | 1960-12-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-12-30 | 1964-06-30 | 1964-12-30 | $7700.00 | Window Closed / Lapsed |