Patent US2773777A successfully refreshed from Google Patents.
US2773777A
Expired / Lapsed
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Bituminous compositions
Assignee: Shell Development Co
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Filing: 1953-12-30
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Granted: 1956-12-11
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Expires: 1973-12-30
Abstract
No abstract record available.
Inventors
- 👤 Alexander Peter
- 👤 Lamb David Rupert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 19:58
CPC Classifications
C; C08; C08L; C08L95/00; C08L95/005
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
109 words
A BITUMINOUS COMPOSITION COMPRISING AS THE SOLE AGGREGATE A SILICEOUS MINERAL AGGREGATE, AT LEAST 50% BY WEIGHT OF WHICH IS RETAINED ON A 50 MESH U. S. STANDARD SIEVE AND WHICH CONTAINS NO MORE THAN ABOUT 25% BY WEIGHT OF FRACTIONS PASSING A 200 MESH U. S. STANDARD SIEVE, 5-15 PERCENT BY WEIGHT BASED ON THE AGGREGATE OF PORTLAND CEMENT, 5-20 PERCENT BY WEIGHT BASED ON THE AGGREGATE OF AN ASPHALT EMULSIFIED IN WATER WITH SODIUM CASEINATE TO FORM AN EMULSION CONTAINING 40-60% ASPHALT HAVING AN ASTM PENETRATION BETWEEN ABOUT 40 AND ABOUT 500 AT 25* C. AND 0.2-2 PERCENT BY WEIGHT BASED ON THE AGGREGATE OF CALCIUM CHLORIDE.
Claim 2
Dependent Claim
109 words
A BITUMINOUS COMPOSITION COMPRISING AS THE SOLE AGGREGATE A SILICEOUS MINERAL AGGREGATE, AT LEAST 50% BY WEIGHT OF WHICH IS RETAINED ON A 50 MESH U. S. STANDARD SIEVE AND WHICH CONTAINS NO MORE THAN ABOUT 25% BY WEIGHT OF FRACTIONS PASSING A 200 MESH U. S. STANDARD SIEVE, 5-15 PERCENT BY WEIGHT BASED ON THE AGGREGATE OF PORTLAND CEMENT, 5-20 PERCENT BY WEIGHT BASED ON THE AGGREGATE OF AN ASPHALT EMULSIFIED IN WATER WITH SODIUM CASEINATE TO FORM AN EMULSION CONTAINING 40-60% ASPHALT HAVING AN ASTM PENETRATION BETWEEN ABOUT 40 AND ABOUT 500 AT 25* C. AND 0.2-2 PERCENT BY WEIGHT BASED ON THE AGGREGATE OF CALCIUM CHLORIDE.
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) | 1959-12-11 | 1960-06-11 | 1960-12-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-12-11 | 1964-06-11 | 1964-12-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-12-11 | 1968-06-11 | 1968-12-11 | $7700.00 | Window Closed / Lapsed |