Patent US2690978A successfully refreshed from Google Patents.
US2690978A
Expired / Lapsed
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Bituminous emulsion
Assignee: Atlas Powder Co
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Filing: 1950-10-04
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Granted: 1954-10-05
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Expires: 1970-10-04
Abstract
No abstract record available.
Inventors
- 👤 Sherwood T Cross
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 17:25
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/16; C08K5/17; Y; Y10; Y10S; Y10S516/00; Y10S516/01; Y10S516/07
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
33 words
A COMPOSITION OF MATTER COMPRISING A WATER AND BITUMEN EMULSION CONTAINING THE REACTION PRODUCT OF A PLURALITY OF MOLECULAR PROPORTIONS OF ETHYLENE OXIDE WITH ONE MOLECULAR PROPORTION OF AN AMINE OF THE FORMULA
Claim 2
Dependent Claim
33 words
A COMPOSITION OF MATTER COMPRISING A WATER AND BITUMEN EMULSION CONTAINING THE REACTION PRODUCT OF A PLURALITY OF MOLECULAR PROPORTIONS OF ETHYLENE OXIDE WITH ONE MOLECULAR PROPORTION OF AN AMINE OF THE FORMULA
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) | 1957-10-04 | 1958-04-05 | 1958-10-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-10-04 | 1962-04-05 | 1962-10-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-10-04 | 1966-04-05 | 1966-10-05 | $7700.00 | Window Closed / Lapsed |