US1104754A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrolytic cell.
Assignee: DAVIS-BOURNONVILLE Co
•
Filing: 1912-11-06
•
Granted: 1914-07-21
•
Expires: 1932-11-06
Abstract
No abstract record available.
Inventors
- 👤 John B Burdett
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 19:45
CPC Classifications
C; C25; C25B; C25B9/00; C25B9/17; C25B9/19
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
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) | 1917-07-20 | 1918-01-19 | 1918-07-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1921-07-20 | 1922-01-19 | 1922-07-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1925-07-20 | 1926-01-19 | 1926-07-21 | $7700.00 | Window Closed / Lapsed |