US2767102A
Expired / Lapsed
US
⏱️ 0.0 years remaining
An asphalt, a process of making it and an enamel made therewith
Assignee: ExxonMobil Technology and Engineering Co
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Filing: 1952-11-28
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Granted: 1956-10-16
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Expires: 1972-11-28
Abstract
No abstract record available.
Inventors
- 👤 Murray H Edson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 04:35
CPC Classifications
C; C10; C10C; C10C3/00; C10C3/02; C10C3/04; C09; C09D; C09D195/00; C10G; C10G11/00; C10G9/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
63 words
AN ASPHALT MATERIAL DERIVED BY CATALYTIC CRACKING OF A HEAVY BOILING FRACTION OF A PETROLEUM CRUDE OIL TO PROVIDE A CATALYTIC CYCLE OIL, SAID CYCLE OIL BEING THERMALLY CRACKED AND VACUUM REDUCED TO PROVIDE A TAR, SAID TAR THEREAFTER BEING AIR-BLOWN TO PROVIDE AN ASPHALT CONTAINING AT LEAST ABOUT 95% OF AROMATIC HYDROCARBONS AND HAVING A SOFTENING POINT OF ABOUT 160*F. TO 210*F.
Claim 2
Dependent Claim
63 words
AN ASPHALT MATERIAL DERIVED BY CATALYTIC CRACKING OF A HEAVY BOILING FRACTION OF A PETROLEUM CRUDE OIL TO PROVIDE A CATALYTIC CYCLE OIL, SAID CYCLE OIL BEING THERMALLY CRACKED AND VACUUM REDUCED TO PROVIDE A TAR, SAID TAR THEREAFTER BEING AIR-BLOWN TO PROVIDE AN ASPHALT CONTAINING AT LEAST ABOUT 95% OF AROMATIC HYDROCARBONS AND HAVING A SOFTENING POINT OF ABOUT 160*F. TO 210*F.
References Cited (Backward Citations)
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US2383701A
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US2220714A
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US2305440A
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US2384671A
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) | 1959-10-16 | 1960-04-16 | 1960-10-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-10-16 | 1964-04-16 | 1964-10-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-10-16 | 1968-04-16 | 1968-10-16 | $7700.00 | Window Closed / Lapsed |