US2417738A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for breaking petroleum emulsions
Assignee: Baker Petrolite LLC
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Filing: 1945-07-13
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Granted: 1947-03-18
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Expires: 1965-07-13
Abstract
No abstract record available.
Inventors
- 👤 Groote Melvin De
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 15:13
CPC Classifications
C; C10; C10G; C10G33/00; C10G33/04; C07; C07C; C07C69/00; C07C69/52
Claims Analysis
Total Claims: 0
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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) | 1950-03-17 | 1950-09-16 | 1951-03-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-03-17 | 1954-09-16 | 1955-03-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-03-17 | 1958-09-16 | 1959-03-18 | $7700.00 | Window Closed / Lapsed |