Patent US3035930A successfully refreshed from Google Patents.
US3035930A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Asphalt compositions
Assignee: Shell USA Inc
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Filing: 1954-01-28
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Granted: 1962-05-22
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Expires: 1974-01-28
Abstract
No abstract record available.
Inventors
- 👤 Samuel K Talley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 10:17
CPC Classifications
C; C08; C08L; C08L95/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
118 words
A BITUMINOUS COMPOSITION COMPRISING A BITUMEN HAVING AN ASTM PENETRATION LESS THAN ABOUT 20 DMM. AT 77*F., FROM ABOUT 20% TO ABOUT 65% BASED ON THE WEIGHT OF THE BITUMEN OF AN ORGANIC ESTER OF THE GROUP CONSISTING OF ALIPHATIC ESTERS OF DICARBOXYLIC ACIDS, ORGANIC SILICON ESTERS, ORGANIC PHOSPHORUS ESTERS AND MIXTURES THEREOF, SAID ESTER HAVING A POUR POINT LOWER THAN ABOUT -40*F. AND A BOILING POINT HIGHER THAN ABOUT 300*F. AT 1 MM. HG PRESSURE AND 2-10% BY WEIGTHT, BASED ON THE ASPHALT, OF A SUBSTANTIALLY INFUSIBLE COLLOIDALLY DISPERSED GELLING AGENT FOR SAID COMPOSITION OF THE GROUP CONSISTING OF HYDROPHILIC INORGANIC BENTONITIC CLAYS, HYDROPHOBIC AMMONIUM CLAYS, INORGANIC AMORPHOUS COLLOIDAL SILICA GELLING AGENTS, CARBON BLACK AND PHTHALOCYANINE DYES.
Claim 2
Dependent Claim
118 words
A BITUMINOUS COMPOSITION COMPRISING A BITUMEN HAVING AN ASTM PENETRATION LESS THAN ABOUT 20 DMM. AT 77*F., FROM ABOUT 20% TO ABOUT 65% BASED ON THE WEIGHT OF THE BITUMEN OF AN ORGANIC ESTER OF THE GROUP CONSISTING OF ALIPHATIC ESTERS OF DICARBOXYLIC ACIDS, ORGANIC SILICON ESTERS, ORGANIC PHOSPHORUS ESTERS AND MIXTURES THEREOF, SAID ESTER HAVING A POUR POINT LOWER THAN ABOUT -40*F. AND A BOILING POINT HIGHER THAN ABOUT 300*F. AT 1 MM. HG PRESSURE AND 2-10% BY WEIGTHT, BASED ON THE ASPHALT, OF A SUBSTANTIALLY INFUSIBLE COLLOIDALLY DISPERSED GELLING AGENT FOR SAID COMPOSITION OF THE GROUP CONSISTING OF HYDROPHILIC INORGANIC BENTONITIC CLAYS, HYDROPHOBIC AMMONIUM CLAYS, INORGANIC AMORPHOUS COLLOIDAL SILICA GELLING AGENTS, CARBON BLACK AND PHTHALOCYANINE DYES.
References Cited (Backward Citations)
US1955355A
Cited
US2048799A
Cited
US2442707A
Cited
US2404208A
Cited
FR1005929A
Cited
US2592564A
Cited
US2661301A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-05-21 | 1965-11-20 | 1966-05-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-05-21 | 1969-11-20 | 1970-05-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-05-21 | 1973-11-20 | 1974-05-22 | $7700.00 | Window Closed / Lapsed |