US3579466A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polyglycidyl polymers as demulsifiers
Assignee: Baker Petrolite LLC
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Filing: 1969-01-17
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Granted: 1971-05-18
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Expires: 1989-01-17
Abstract
Abstract A PROCESS OF DEMULSIFICATION WHICH EMPLOYS POLYGLYCIDYL POLYMERS AND COPOLYMERS THEREOF AND DERIVATIVES THEREOF AS DEMULSIFIERS.
Inventors
- 👤 Patrick M Quinlan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 18:43
CPC Classifications
C; C10; C10G; C10G33/00; C08; C08G; C08G65/00; C08G65/02; C08G65/04; C08G65/22
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-05-17 | 1974-11-16 | 1975-05-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-05-17 | 1978-11-16 | 1979-05-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-05-17 | 1982-11-16 | 1983-05-18 | $7700.00 | Window Closed / Lapsed |