US3235522A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Petroleum resin-rubber-aromatic oil emulsion for treating asphalt surfaces
Assignee: Phillips Petroleum Co
•
Filing: 1962-02-20
•
Granted: 1966-02-15
•
Expires: 1982-02-20
Abstract
No abstract record available.
Inventors
- 👤 Donald E Carr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 17:12
CPC Classifications
C; C08; C08L; C08L57/00; C08L57/02
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
64 words
A METHOD FOR IMPROVING THE SURFACE CHARACTERISTICS OF AN ASPHALT-CONTAINING SURFACE WHICH COMPRISES APPLYING THERETO AN AQUEOUS EMULSION CONSISTING ESSENTIALLY OF FROM 20-65 PARTS OF A HEAVY AROMATIC PETROLEUM OIL, FROM 30-60 PARTS OF A PETROLEUM RESIN OBTAINED FROM ASPHALT AND SEPARTED FROM ASPHALTENES, FROM 5-20 PARTS OF A BUTADIENE-SYTRENE SYNTHETIC RUBBER AND FROM 1-5 PARTS OF TALL OIL, THE PARTS BEING BY VOLUME.
References Cited (Backward Citations)
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US2802798A
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US3002940A
Cited
US3055853A
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US3097179A
Cited
US3085889A
Cited
US3093601A
Cited
US3162101A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-02-14 | 1969-08-16 | 1970-02-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-02-14 | 1973-08-16 | 1974-02-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-02-14 | 1977-08-16 | 1978-02-15 | $7700.00 | Window Closed / Lapsed |