Patent US2425354A successfully refreshed from Google Patents.
US2425354A
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US
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Electric treater
Assignee: Baker Petrolite LLC
•
Filing: 1940-02-23
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Granted: 1947-08-12
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Expires: 1960-02-23
Abstract
No abstract record available.
Inventors
- 👤 Richard W Stenzel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 10:50
CPC Classifications
C; C10; C10G; C10G33/00; C10G33/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1438048A
Cited
US1838016A
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US1947704A
Cited
US2001809A
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US2033567A
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US2083798A
Cited
US2182145A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1950-08-11 | 1951-02-10 | 1951-08-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-08-11 | 1955-02-10 | 1955-08-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-08-11 | 1959-02-10 | 1959-08-12 | $7700.00 | Window Closed / Lapsed |