Patent US2494708A successfully refreshed from Google Patents.
US2494708A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stable bituminous emulsion and preparation thereof
Assignee: Individual
•
Filing: 1946-07-27
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Granted: 1950-01-17
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Expires: 1966-07-27
Abstract
No abstract record available.
Inventors
- 👤 Donald C Jesseph
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 22:02
CPC Classifications
C; C08; C08L; C08L95/00; C08L95/005
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
30 words
AN EMULSION CONSISTING OF WATER AND BITUMINOUS MATERIAL IN WHICH WATER IS THE CONTINOUS PHASE AND BITUMINOUS MATERIAL IS THE DISPERSE PHASE, SAID EMULSION BEING STABILIZED BY AMMONIUM-LIGNO-SULFONATE MIXED THEREIN.
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) | 1953-01-16 | 1953-07-18 | 1954-01-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-01-16 | 1957-07-18 | 1958-01-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-01-16 | 1961-07-18 | 1962-01-17 | $7700.00 | Window Closed / Lapsed |