Patent US2560650A successfully refreshed from Google Patents.
US2560650A
Expired / Lapsed
US
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Process for modifying, solidifying, and insolubilizing asphalts
Assignee: Individual
•
Filing: 1948-09-01
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Granted: 1951-07-17
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Expires: 1968-09-01
Abstract
No abstract record available.
Inventors
- 👤 Kronstein Max
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 07:32
CPC Classifications
C; C10; C10C; C10C3/00; C10C3/02; C10C3/026
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
67 words
A PROCESS FOR MODIFYING, SOLIDIFYING AND IN SOLUBILIZING ASPHALTS WHICH COMPRISES TREATING SAID ASPHALTS WITH NOT LESS THAN ABOUT 4 PER CENT BY WEIGHT OF A PEROXIDE SELECTED FROM THE GROUP CONSISTING OF HYDROGEN, ALKYL, ARYL AND ALKYL ARYL PEROXIDE AT A TEMPERATURE SUFFICIENT TO EFFECT THE RELEASE OF FREE OXYGEN IN SAID ASPHALT WHEREBY TO OBTAIN A SOLIDIFIED ASPHALTS WHICH IS INSOLUBLE IN NAPHTHA AND TOLUENE.
Claim 2
Dependent Claim
67 words
A PROCESS FOR MODIFYING, SOLIDIFYING AND IN SOLUBILIZING ASPHALTS WHICH COMPRISES TREATING SAID ASPHALTS WITH NOT LESS THAN ABOUT 4 PER CENT BY WEIGHT OF A PEROXIDE SELECTED FROM THE GROUP CONSISTING OF HYDROGEN, ALKYL, ARYL AND ALKYL ARYL PEROXIDE AT A TEMPERATURE SUFFICIENT TO EFFECT THE RELEASE OF FREE OXYGEN IN SAID ASPHALT WHEREBY TO OBTAIN A SOLIDIFIED ASPHALTS WHICH IS INSOLUBLE IN NAPHTHA AND TOLUENE.
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) | 1954-07-16 | 1955-01-15 | 1955-07-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-07-16 | 1959-01-15 | 1959-07-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-07-16 | 1963-01-15 | 1963-07-17 | $7700.00 | Window Closed / Lapsed |