Patent US2447547A successfully refreshed from Google Patents.
US2447547A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrolytic alkali chlorine cell
Assignee: Occidental Chemical Corp
•
Filing: 1945-06-02
•
Granted: 1948-08-24
•
Expires: 1965-06-02
Abstract
No abstract record available.
Inventors
- 👤 Kenneth E Stuart
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 15:25
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)
US310744A
Cited
SE5645C1
Cited
US1665208A
Cited
US180104A
Cited
US1378829A
Cited
US1924827A
Cited
US1793711A
Cited
US1865152A
Cited
US1866065A
Cited
US2208778A
Cited
US2368861A
Cited
US2370087A
Cited
US2370086A
Cited
US2392868A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-08-24 | 1952-02-23 | 1952-08-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-08-24 | 1956-02-23 | 1956-08-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-08-24 | 1960-02-23 | 1960-08-24 | $7700.00 | Window Closed / Lapsed |