US2764523A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Asphalt and process for manufacturing same
Assignee: ExxonMobil Technology and Engineering Co
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Filing: 1952-05-09
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Granted: 1956-09-25
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Expires: 1972-05-09
Abstract
No abstract record available.
Inventors
- 👤 Delmer L Cottle
- 👤 David W Young
- 👤 Murray H Edson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 15:51
CPC Classifications
C; C10; C10C; C10C3/00; C10C3/02; C10C3/026
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
55 words
A PROCESS FOR IMPROVING THE PROPERTIES OF A PETROLEUM ASPHALITC MATERIAL IN WHICH THE SAID ASPHALTIC MATERIAL IS REACTED AT A TEMPERATURE OF AT LEAST ABOUT 150* C. WITH ABOUT 1 TO 5% BY WEIGHT OF A COMPOUND SELECTED FROM THE GROUP CONSISTING OF C1 TO C8 ALIPHATIC ALDEHYDES AND C3 AND C9 ALIPHATIC KETONES.
Claim 2
Dependent Claim
55 words
A PROCESS FOR IMPROVING THE PROPERTIES OF A PETROLEUM ASPHALITC MATERIAL IN WHICH THE SAID ASPHALTIC MATERIAL IS REACTED AT A TEMPERATURE OF AT LEAST ABOUT 150* C. WITH ABOUT 1 TO 5% BY WEIGHT OF A COMPOUND SELECTED FROM THE GROUP CONSISTING OF C1 TO C8 ALIPHATIC ALDEHYDES AND C3 AND C9 ALIPHATIC KETONES.
Claim 3
Dependent Claim
53 words
AS A NEW COMPOSITION OF MATTER A PETROLEUM DERIVATIVE PREPARED BY REACTING A MATERIAL SELECTED FROM THE GROUP CONSISTING OF ASPHALTIC MATERIAL AND RESIDUAL OIL WITH ABOUT 1% TO 5% BY WEIGHT OF AN ALIPHATIC CARBONYL COMPOUND HAVING NO MORE THAN 9 CARBON ATOMS AT A TEMPERATURE OF AT LEAST ABOUT 150* C.
Claim 4
Dependent Claim
53 words
AS A NEW COMPOSITION OF MATTER A PETROLEUM DERIVATIVE PREPARED BY REACTING A MATERIAL SELECTED FROM THE GROUP CONSISTING OF ASPHALTIC MATERIAL AND RESIDUAL OIL WITH ABOUT 1% TO 5% BY WEIGHT OF AN ALIPHATIC CARBONYL COMPOUND HAVING NO MORE THAN 9 CARBON ATOMS AT A TEMPERATURE OF AT LEAST ABOUT 150* C.
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) | 1959-09-25 | 1960-03-26 | 1960-09-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-09-25 | 1964-03-26 | 1964-09-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-09-25 | 1968-03-26 | 1968-09-25 | $7700.00 | Window Closed / Lapsed |