Patent US2454435A successfully refreshed from Google Patents.
US2454435A
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Process for breaking petroleum emulsions
Assignee: Baker Petrolite LLC
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Filing: 1947-03-12
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Granted: 1948-11-23
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Expires: 1967-03-12
Abstract
No abstract record available.
Inventors
- 👤 Groote Melvin De
- 👤 Owen H Pettingill
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 04:23
CPC Classifications
C; C10; C10G; C10G33/00; C10G33/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2075018A
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US2307058A
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US2317726A
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US2278838A
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US2327996A
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US2417739A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-11-23 | 1952-05-24 | 1952-11-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-11-23 | 1956-05-24 | 1956-11-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-11-23 | 1960-05-24 | 1960-11-23 | $7700.00 | Window Closed / Lapsed |