US2845359A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Asphalt composition
Assignee: ExxonMobil Technology and Engineering Co
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Filing: 1953-12-29
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Granted: 1958-07-29
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Expires: 1973-12-29
Abstract
No abstract record available.
Inventors
- 👤 Murray H Edson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 00:45
CPC Classifications
C; C10; C10C; C10C3/00; C10C3/02; C10C3/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
60 words
A NON-GELLING COMPOSITION CONSISTING ESSENTIALLY OF A VOLTATILE HYDROCARBON OIL AND IN THE RANGE OF ABOUT 15 TO 80% BY WEIGHT, BASED ON THE TOTAL COMPOSITION, OF AN ASPHALT PREPARED BY MIXING A RESIDUAL OIL AND ABOUT 0.1 TO 5 WEIGHT PERCENT P2O5 IN THE ABSENCE OF FREE OXYGEN AT A TEMPERATURE IN THE RANGE OF ABOUT 300* TO 550*F.
Claim 2
Dependent Claim
60 words
A NON-GELLING COMPOSITION CONSISTING ESSENTIALLY OF A VOLTATILE HYDROCARBON OIL AND IN THE RANGE OF ABOUT 15 TO 80% BY WEIGHT, BASED ON THE TOTAL COMPOSITION, OF AN ASPHALT PREPARED BY MIXING A RESIDUAL OIL AND ABOUT 0.1 TO 5 WEIGHT PERCENT P2O5 IN THE ABSENCE OF FREE OXYGEN AT A TEMPERATURE IN THE RANGE OF ABOUT 300* TO 550*F.
References Cited (Backward Citations)
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US2274749A
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US2408297A
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US2610956A
Cited
US2582264A
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US2676910A
Cited
US2690418A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-07-28 | 1962-01-27 | 1962-07-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-07-28 | 1966-01-27 | 1966-07-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-07-28 | 1970-01-27 | 1970-07-29 | $7700.00 | Window Closed / Lapsed |