US3243311A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of preparing improved asphalt aggregate structures comprising pretreating the aggregate with a polyvalent metal compound
Assignee: ExxonMobil Technology and Engineering Co
•
Filing: 1962-04-05
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Granted: 1966-03-29
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Expires: 1982-04-05
Abstract
No abstract record available.
Inventors
- 👤 Dilworth T Rogers
- 👤 John C Munday
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 09:33
CPC Classifications
C; C08; C08L; C08L95/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
112 words
IN THE PROCESS OF PREPARING STABILIZED AGGREGATE ASPHALT COMPOSITIONS OF ENHANCED COMPRESSIVE STRENGTH WHEREIN THE FINELY SUBDIVIDED SOLID AGGREGATE IS ADMIXED WITH AN ASPHALT COMPOSITION, COMPACTED TO THE DESIRED FORM AND CURED, THE IMPROVEMENT WHICH COMPRISES: PRETREATING THE FINELY SUBDIVIDED SOLID AGGREGATE PRIOR TO ADMIXTURE WITH THE ASPHALT WITH FROM 0.1 TO 5.0 WT. PERCENT OF A METAL COMPOUND CONTAINING A POLYVALENT METAL ELEMENT IN OTHER THAN THE LOWEST OXIDATION STATE SELECTED FROM THE GROUP CONSISTING OF GROUP I METALS, GROUP V METALS, GROUP VI METALS, GROUP VIII MERALS AND MISTURES THEREOF, AND CURING SAID PRETREATED SOLID ASPHALT MIXTURE AT A TEMPERATURE GREATER THAN 150*F., THEREBY PROVIDING A STABLIZIED SOLVENT RESISTANT COMPOSITION.
Claim 2
Dependent Claim
112 words
IN THE PROCESS OF PREPARING STABILIZED AGGREGATE ASPHALT COMPOSITIONS OF ENHANCED COMPRESSIVE STRENGTH WHEREIN THE FINELY SUBDIVIDED SOLID AGGREGATE IS ADMIXED WITH AN ASPHALT COMPOSITION, COMPACTED TO THE DESIRED FORM AND CURED, THE IMPROVEMENT WHICH COMPRISES: PRETREATING THE FINELY SUBDIVIDED SOLID AGGREGATE PRIOR TO ADMIXTURE WITH THE ASPHALT WITH FROM 0.1 TO 5.0 WT. PERCENT OF A METAL COMPOUND CONTAINING A POLYVALENT METAL ELEMENT IN OTHER THAN THE LOWEST OXIDATION STATE SELECTED FROM THE GROUP CONSISTING OF GROUP I METALS, GROUP V METALS, GROUP VI METALS, GROUP VIII MERALS AND MISTURES THEREOF, AND CURING SAID PRETREATED SOLID ASPHALT MIXTURE AT A TEMPERATURE GREATER THAN 150*F., THEREBY PROVIDING A STABLIZIED SOLVENT RESISTANT COMPOSITION.
References Cited (Backward Citations)
US2089713A
Cited
US2212574A
Cited
US2550371A
Cited
US2626872A
Cited
US2725530A
Cited
US2889231A
Cited
US3092437A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-03-28 | 1969-09-27 | 1970-03-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-03-28 | 1973-09-27 | 1974-03-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-03-28 | 1977-09-27 | 1978-03-29 | $7700.00 | Window Closed / Lapsed |