US2939800A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Production of cold mixed asphaltic paving compositions
Assignee: Sinclair Refining Co
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Filing: 1956-12-04
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Granted: 1960-06-07
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Expires: 1976-12-04
Abstract
No abstract record available.
Inventors
- 👤 Wilbur E Fox
- 👤 Walter A Los
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 21:51
CPC Classifications
E; E01; E01C; E01C7/00; E01C7/08; E01C7/18
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
97 words
IN A PROCESS FOR PRODUCING A COLD-MIXED ASPAHLTIC PAVING COMPOSITION HAVING SUPERIOR STOCKPILING CHARACTERISTICS THE STEPS COMPRISING COATING AGGREGATE WITH FLUX OIL AND MIXING THE FLUX OIL-COATED AGGREGATE WITH PARTICLES OF ABOUT 1/8 TO 1 INCH IN DIAMETER SELECTED FROM THE GROUP CONSISTING OF ASPHALT AND AGGREGATE COVERED WITH ASPHALT UNTIL THE PARTICLES ARE DISPERSED THROUGHOUT THE COMPOSITION, THE AMOUNT OF ASPHALT IN THE PARTICLES BEING ABOUT 45 TO 70 WEIGHT PERCENT BASED ON THE FLUX OIL AND ASPHALT AND ABOUT 15 TO 75 PERCENT OF THE TOTAL AGGREGATE BEING ABOUT 1/8 TO 1 INCH IN DIAMETER.
Claim 2
Dependent Claim
97 words
IN A PROCESS FOR PRODUCING A COLD-MIXED ASPAHLTIC PAVING COMPOSITION HAVING SUPERIOR STOCKPILING CHARACTERISTICS THE STEPS COMPRISING COATING AGGREGATE WITH FLUX OIL AND MIXING THE FLUX OIL-COATED AGGREGATE WITH PARTICLES OF ABOUT 1/8 TO 1 INCH IN DIAMETER SELECTED FROM THE GROUP CONSISTING OF ASPHALT AND AGGREGATE COVERED WITH ASPHALT UNTIL THE PARTICLES ARE DISPERSED THROUGHOUT THE COMPOSITION, THE AMOUNT OF ASPHALT IN THE PARTICLES BEING ABOUT 45 TO 70 WEIGHT PERCENT BASED ON THE FLUX OIL AND ASPHALT AND ABOUT 15 TO 75 PERCENT OF THE TOTAL AGGREGATE BEING ABOUT 1/8 TO 1 INCH IN DIAMETER.
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) | 1963-06-07 | 1963-12-07 | 1964-06-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-06-07 | 1967-12-07 | 1968-06-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-06-07 | 1971-12-07 | 1972-06-07 | $7700.00 | Window Closed / Lapsed |