US1056181A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrolytic cell and method of maintaining the efficiency thereof.
Assignee: CHLORIDE PROCESS Co
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Filing: 1912-12-17
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Granted: 1913-03-18
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Expires: 1932-12-17
Abstract
No abstract record available.
Inventors
- 👤 William M Jewell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 02:06
CPC Classifications
C; C25; C25B; C25B1/00; C25B1/01; C25B1/34; C25B1/46
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) | 1916-03-17 | 1916-09-16 | 1917-03-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1920-03-17 | 1920-09-16 | 1921-03-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1924-03-17 | 1924-09-16 | 1925-03-18 | $7700.00 | Window Closed / Lapsed |