US2762756A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Asphalt manufacture
Assignee: ExxonMobil Oil Corp
•
Filing: 1952-09-30
•
Granted: 1956-09-11
•
Expires: 1972-09-30
Abstract
No abstract record available.
Inventors
- 👤 Jr Robert N Kinnaird
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 17:59
CPC Classifications
C; C10; C10C; C10C3/00; C10C3/02; C10C3/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
95 words
THE PROCESS FOR MANUFACTURING ASPHALT WHICH COMPRISES: PASSING AN ASPHALT CHARGE STOCK THROUGH AN EJECTOR INTO WHICH AIR IS INDUCTED SIMULTANEOUSLY BY THE FLOW OF THE SAID CHARGE STOCK, WHEREBY SAID CHARGE STOCK IS DISPERSED IN AIR, THE RATIO OF SAID ASPHALT CHARGE TO AIR BEING FROM ABOUT 1.6 TO ABOUT 5.6 GALLONS PER MINUTE PER 1 CUBIC FOOT OF AIR PER MINUTE, AND THE TEMPERATURE BEING MAINTAINED BETWEEN ABOUT 300 AND ABOUT 550* F.; AND DISCHARGING THE REACTION PRODUCT OF SAID ASPHALT CHARGE STOCK AND AIR DIRECTLY INTO A VAPOR SPACE OF A SEPARATOR
Claim 2
Dependent Claim
95 words
THE PROCESS FOR MANUFACTURING ASPHALT WHICH COMPRISES: PASSING AN ASPHALT CHARGE STOCK THROUGH AN EJECTOR INTO WHICH AIR IS INDUCTED SIMULTANEOUSLY BY THE FLOW OF THE SAID CHARGE STOCK, WHEREBY SAID CHARGE STOCK IS DISPERSED IN AIR, THE RATIO OF SAID ASPHALT CHARGE TO AIR BEING FROM ABOUT 1.6 TO ABOUT 5.6 GALLONS PER MINUTE PER 1 CUBIC FOOT OF AIR PER MINUTE, AND THE TEMPERATURE BEING MAINTAINED BETWEEN ABOUT 300 AND ABOUT 550* F.; AND DISCHARGING THE REACTION PRODUCT OF SAID ASPHALT CHARGE STOCK AND AIR DIRECTLY INTO A VAPOR SPACE OF A SEPARATOR
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-09-11 | 1960-03-12 | 1960-09-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-09-11 | 1964-03-12 | 1964-09-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-09-11 | 1968-03-12 | 1968-09-11 | $7700.00 | Window Closed / Lapsed |