US3458411A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrolytic method for electrolysis of hydrochloric acid
Assignee: Hooker Chemical Corp
•
Filing: 1967-01-30
•
Granted: 1969-07-29
•
Expires: 1987-01-30
Abstract
No abstract record available.
Inventors
- 👤 Morris P Grotheer
- 👤 Edward H Cook
- 👤 Daniel J Snyder
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 00:37
CPC Classifications
C; C23; C23F; C23F11/00; C23F11/04; C25; C25B; C25B1/00; C25B1/01; C25B1/24; C25B1/26; C25B9/00; C25B9/17; C25B9/19
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1847435A
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US2060138A
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US2306927A
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US2967807A
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US2944956A
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US2958635A
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US2987463A
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US2998374A
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US3116228A
Cited
US3057760A
Cited
US3342717A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-07-28 | 1973-01-27 | 1973-07-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-07-28 | 1977-01-27 | 1977-07-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-07-28 | 1981-01-27 | 1981-07-29 | $7700.00 | Window Closed / Lapsed |