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Patent US1464689A successfully refreshed from Google Patents.
US1464689A
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Electrolytic cell structure
Assignee: TORONTO POWER Co Ltd
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Filing: 1920-09-02
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Granted: 1923-08-14
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Expires: 1940-09-02
Abstract
No abstract record available.
Inventors
- 👤 William G Allan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 17:13
CPC Classifications
C; C25; C25B; C25B9/00; C25B9/60; C25B9/63; C25B1/00; C25B1/01; C25B1/02; C25B1/04; C25B11/00; C25B11/02; C25B11/036; C25B9/17; C25B9/19; C25B9/70; C25B9/73; C25B9/75; C25B9/77
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1926-08-13 | 1927-02-12 | 1927-08-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1930-08-13 | 1931-02-12 | 1931-08-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1934-08-13 | 1935-02-12 | 1935-08-14 | $7700.00 | Window Closed / Lapsed |