US3334038A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Phase separation process
Assignee: Baker Petrolite LLC
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Filing: 1964-06-01
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Granted: 1967-08-01
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Expires: 1984-06-01
Abstract
No abstract record available.
Inventors
- 👤 Roy N Lucas
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 00:55
CPC Classifications
C; C10; C10G; C10G33/00; C10G33/02; C10G33/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
25 words
A CHEMICAL-ELECTRIC PROCESS OF DEMULSIFYING PETROLEUM CHARACTERIZED BY SUBJECTING PETROLEUM EMULSIONS, CONTAINING A POLYESTER OF POLYALKYLENEETHER GLYCOL AND A POLYCARBOXYLIC ACID, TO AN ELECTRIC FIELD.
Claim 2
Dependent Claim
25 words
A CHEMICAL-ELECTRIC PROCESS OF DEMULSIFYING PETROLEUM CHARACTERIZED BY SUBJECTING PETROLEUM EMULSIONS, CONTAINING A POLYESTER OF POLYALKYLENEETHER GLYCOL AND A POLYCARBOXYLIC ACID, TO AN ELECTRIC FIELD.
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) | 1970-07-31 | 1971-01-30 | 1971-08-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-07-31 | 1975-01-30 | 1975-08-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-07-31 | 1979-01-30 | 1979-08-01 | $7700.00 | Window Closed / Lapsed |