US1302824A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrolytic cell.
Assignee: Individual
•
Filing: 1917-07-14
•
Granted: 1919-05-06
•
Expires: 1937-07-14
Abstract
No abstract record available.
Inventors
- 👤 Clarence W Marsh
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 21:14
CPC Classifications
C; C25; C25B; C25B9/00; C25B9/17; C25B9/19; C25B9/01; C25B9/13; C25B9/70; C25B9/73; 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) | 1922-05-05 | 1922-11-04 | 1923-05-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1926-05-05 | 1926-11-04 | 1927-05-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1930-05-05 | 1930-11-04 | 1931-05-06 | $7700.00 | Window Closed / Lapsed |