US2545963A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for producing asphalt compositions
Assignee: Standard Oil Development Co
•
Filing: 1948-12-02
•
Granted: 1951-03-20
•
Expires: 1968-12-02
Abstract
No abstract record available.
Inventors
- 👤 Mack Charles
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 11:06
CPC Classifications
C; C10; C10C; C10C3/00; C10C3/02; C10C3/026
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
47 words
A PROCESS FOR IMPROVING THE FLOW PROPERTIES OF ASPHALTS WHICH COMPRISES REACTING AN ASPHALT WITH 0.5 TO 5% BY WEIGHT OF A VINYL COMPOUND IN THE PRESENCE OF AN ORGANIC PEROXIDE, THE SAID PEROXIDE BEING USED IN AMOUNTS OF ABOUT 2%-5% BY WEIGHT OF THE VINYL COMPOUNDS.
Claim 2
Dependent Claim
47 words
A PROCESS FOR IMPROVING THE FLOW PROPERTIES OF ASPHALTS WHICH COMPRISES REACTING AN ASPHALT WITH 0.5 TO 5% BY WEIGHT OF A VINYL COMPOUND IN THE PRESENCE OF AN ORGANIC PEROXIDE, THE SAID PEROXIDE BEING USED IN AMOUNTS OF ABOUT 2%-5% BY WEIGHT OF THE VINYL COMPOUNDS.
References Cited (Backward Citations)
US2155590A
Cited
US2232595A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-03-19 | 1954-09-18 | 1955-03-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-03-19 | 1958-09-18 | 1959-03-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-03-19 | 1962-09-18 | 1963-03-20 | $7700.00 | Window Closed / Lapsed |