US2941893A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Bituminous emulsion
Assignee: Individual
•
Filing: 1955-12-22
•
Granted: 1960-06-21
•
Expires: 1975-12-22
Abstract
No abstract record available.
Inventors
- 👤 Mcconnaughay Kenneth Earl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 05:50
CPC Classifications
C; C08; C08L; C08L95/00; C08L95/005
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
78 words
AN AQUEOUS EMULSION OF A SUBSTANCE SELECTED FROM THE CLASS CONSISTING OF BITUMENS AND LATEX AND SUITABLE FOR APPLICATION TO AGGREGATE TO PRODUCE A PAVING COMPOSITION, SAID EMULSION CONTAINING DISPERSED THROUGHOUT IT FROM ABOUT 0.01% TO ABOUT 1% OF A WATER-SOLUBLE ALKYLHYDROXY METHYL-CELLULOSE WHEREIN THE ALKYLHYDROXY SUBSTITUENT CONTAINS MORE THAN TWO BUT LESS THAN FIVE CARBON ATOMS, SAID EMULSION BEING CHARACTERIZED BY ITS ADHESION TO THE AGGREGATE WHEN THE COATED AGGREGATE IS WASHED WITH WATER IMMEDIATELY AFTER MIXING.
Claim 2
Dependent Claim
78 words
AN AQUEOUS EMULSION OF A SUBSTANCE SELECTED FROM THE CLASS CONSISTING OF BITUMENS AND LATEX AND SUITABLE FOR APPLICATION TO AGGREGATE TO PRODUCE A PAVING COMPOSITION, SAID EMULSION CONTAINING DISPERSED THROUGHOUT IT FROM ABOUT 0.01% TO ABOUT 1% OF A WATER-SOLUBLE ALKYLHYDROXY METHYL-CELLULOSE WHEREIN THE ALKYLHYDROXY SUBSTITUENT CONTAINS MORE THAN TWO BUT LESS THAN FIVE CARBON ATOMS, SAID EMULSION BEING CHARACTERIZED BY ITS ADHESION TO THE AGGREGATE WHEN THE COATED AGGREGATE IS WASHED WITH WATER IMMEDIATELY AFTER MIXING.
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) | 1963-06-21 | 1963-12-21 | 1964-06-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-06-21 | 1967-12-21 | 1968-06-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-06-21 | 1971-12-21 | 1972-06-21 | $7700.00 | Window Closed / Lapsed |