US3206412A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Resolving water-in-oil emulsions with polyoxyalkylated condensation polymers of alkyl phenols, formaldehyde, and alkylol primary monoamines
Assignee: ChampionX LLC
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Filing: 1961-07-03
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Granted: 1965-09-14
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Expires: 1981-07-03
Abstract
No abstract record available.
Inventors
- 👤 Willard H Kirkpatrick
- 👤 Virgil L Seale
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 04:35
CPC Classifications
C; C08; C08G; C08G14/00; C08G14/02; C08G14/04; C08G14/06; C10; C10G; C10G33/00; C10G33/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
32 words
A PROCESS FOR RESOLVING WATER-IN-PETROLEUM OIL EMULSIONS WHICH COMPRISED ADDING TO THE WATER-IN-PETROLEUM OIL EMULSION A SMALL QUANTITYOF A POLYALKYLATED CONDENSATION POLYMER WHICH CONSISTS PRIMARILY OF THE RECURRING UNITS OF THE FORMULAE
Claim 2
Dependent Claim
32 words
A PROCESS FOR RESOLVING WATER-IN-PETROLEUM OIL EMULSIONS WHICH COMPRISED ADDING TO THE WATER-IN-PETROLEUM OIL EMULSION A SMALL QUANTITYOF A POLYALKYLATED CONDENSATION POLYMER WHICH CONSISTS PRIMARILY OF THE RECURRING UNITS OF THE FORMULAE
References Cited (Backward Citations)
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Cited
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Cited
US2792365A
Cited
US2819226A
Cited
US2854416A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-09-13 | 1969-03-15 | 1969-09-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-09-13 | 1973-03-15 | 1973-09-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-09-13 | 1977-03-15 | 1977-09-14 | $7700.00 | Window Closed / Lapsed |