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US2812301A
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US
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Electrolytic regeneration of aqueous solutions containing mercaptides
Assignee: BP PLC
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Filing: 1954-11-02
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Granted: 1957-11-05
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Expires: 1974-11-02
Abstract
No abstract record available.
Inventors
- 👤 Rideal Eric Keightley
- 👤 Mcncill Eric
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 15:53
CPC Classifications
C; C01; C01D; C01D1/00; C01D1/04; C01D1/28; C01D1/40
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) | 1960-11-04 | 1961-05-06 | 1961-11-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-11-04 | 1965-05-06 | 1965-11-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-11-04 | 1969-05-06 | 1969-11-05 | $7700.00 | Window Closed / Lapsed |