Patent US3276887A successfully refreshed from Google Patents.
US3276887A
Expired / Lapsed
US
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Asphalt emulsions
Assignee: Phillips Petroleum Co
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Filing: 1963-06-20
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Granted: 1966-10-04
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Expires: 1983-06-20
Abstract
No abstract record available.
Inventors
- 👤 Armin C Pitchford
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 07:37
CPC Classifications
G; G05; G05G; G05G1/00; G05G1/30; G05G1/48; G05G1/483; C; C08; C08K; C08K5/00; C08K5/04; C08K5/06
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
20 words
AN OIL-IN-WATER ASPHALT EMULSION COMPRISING ASPHALT, WATER, A CATIONIC EMULSIFYING AGENT, AND A NONIONIC EMULSIFYING AGENT OF THE GENERAL FORMULA
Claim 2
Dependent Claim
20 words
AN OIL-IN-WATER ASPHALT EMULSION COMPRISING ASPHALT, WATER, A CATIONIC EMULSIFYING AGENT, AND A NONIONIC EMULSIFYING AGENT OF THE GENERAL FORMULA
Claim 3
Dependent Claim
29 words
A COMPOSITION COMPRISING A SLURRY OF ELECTRONEGATIVE AGGREGATE AND AN OIL-IN-WATER ASPHALT EMULSION COMPRISING ASPHALT, WATER, A CATIONIC EMULSIFYING AGENT, AND A NONIONIC EMULSIFYING AGENT OF THE GENERAL FORMULA
Claim 4
Dependent Claim
29 words
A COMPOSITION COMPRISING A SLURRY OF ELECTRONEGATIVE AGGREGATE AND AN OIL-IN-WATER ASPHALT EMULSION COMPRISING ASPHALT, WATER, A CATIONIC EMULSIFYING AGENT, AND A NONIONIC EMULSIFYING AGENT OF THE GENERAL 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) | 1969-10-03 | 1970-04-04 | 1970-10-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-10-03 | 1974-04-04 | 1974-10-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-10-03 | 1978-04-04 | 1978-10-04 | $7700.00 | Window Closed / Lapsed |