Patent US2782169A successfully refreshed from Google Patents.
US2782169A
Expired / Lapsed
US
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Continuous process for producing bituminous emulsions
Assignee: Patent and Licensing Corp
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Filing: 1952-08-21
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Granted: 1957-02-19
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Expires: 1972-08-21
Abstract
No abstract record available.
Inventors
- 👤 Eldon C Brown
- 👤 Wilfred H Driesen
- 👤 Jacob S Guepet
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 12:47
CPC Classifications
C; C08; C08L; C08L95/00; C08L95/005
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
24 words
A BITUMINOUS EMULSION CONTAINING CLAY AS THE EMULSIFYING AGENT AND HAVING THE MAJORITY OF BITUMEN PARTICLES OF A SIZE FROM 3 TO 10 MICRONS.
Claim 2
Dependent Claim
24 words
A BITUMINOUS EMULSION CONTAINING CLAY AS THE EMULSIFYING AGENT AND HAVING THE MAJORITY OF BITUMEN PARTICLES OF A SIZE FROM 3 TO 10 MICRONS.
Claim 3
Dependent Claim
52 words
A PROCESS FOR THE PRODUCTION OF AN ASPHALT-CLAY EMULSION COMPRISING SIMULTANEOUSLY PASSING THROUGH AN ATTRITION TYPE COLLOID MILL A MOLTEN ASPHALT AND A CLAY SLIP COMPRISING BENTONITE CLAY AND WATER ADJUSTED TO A PH IN THE RANGE 4.0 TO 4.5 THE WATER COMPRISING 44% TO 50% BY WEIGHT OF THE FINISHED EMULSION.
Claim 4
Dependent Claim
52 words
A PROCESS FOR THE PRODUCTION OF AN ASPHALT-CLAY EMULSION COMPRISING SIMULTANEOUSLY PASSING THROUGH AN ATTRITION TYPE COLLOID MILL A MOLTEN ASPHALT AND A CLAY SLIP COMPRISING BENTONITE CLAY AND WATER ADJUSTED TO A PH IN THE RANGE 4.0 TO 4.5 THE WATER COMPRISING 44% TO 50% BY WEIGHT OF THE FINISHED EMULSION.
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) | 1960-02-19 | 1960-08-20 | 1961-02-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-02-19 | 1964-08-20 | 1965-02-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-02-19 | 1968-08-20 | 1969-02-19 | $7700.00 | Window Closed / Lapsed |