US2879219A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Asphalt composition, an additive there-for and method for producing same
Assignee: Phillips Petroleum Co
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Filing: 1956-08-24
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Granted: 1959-03-24
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Expires: 1976-08-24
Abstract
No abstract record available.
Inventors
- 👤 Bruce C Benedict
- 👤 Jr Homer J Sarrett
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 22:12
CPC Classifications
C; C10; C10C; C10C3/00; C10C3/08; C10G; C10G21/00; C10G21/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
47 words
AN ASPHALT COMPOSITION COMPRISING A BLEND OF ASPHALT AND AN AROMATIC MATERIAL PRODUCED BY THE PROPANE FRACTIONATION OF A SOLVENT EXTRACT OIL PRODUCED BY THE SOLVENT EXTRACTION OF A LUBRICATING BRIGHT STOCK OIL CONTAINING AROMATIC HYDROCARBONS AND NONAROMATIC HYDROCARBON WITH A SOLVENT ADAPTED TO EXTRACT AROMATIC HYDROCARBONS.
Claim 2
Dependent Claim
47 words
AN ASPHALT COMPOSITION COMPRISING A BLEND OF ASPHALT AND AN AROMATIC MATERIAL PRODUCED BY THE PROPANE FRACTIONATION OF A SOLVENT EXTRACT OIL PRODUCED BY THE SOLVENT EXTRACTION OF A LUBRICATING BRIGHT STOCK OIL CONTAINING AROMATIC HYDROCARBONS AND NONAROMATIC HYDROCARBON WITH A SOLVENT ADAPTED TO EXTRACT AROMATIC HYDROCARBONS.
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) | 1962-03-23 | 1962-09-22 | 1963-03-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-03-23 | 1966-09-22 | 1967-03-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-03-23 | 1970-09-22 | 1971-03-24 | $7700.00 | Window Closed / Lapsed |