Patent US2323631A successfully refreshed from Google Patents.
US2323631A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Regeneration of deactivated cuprous chloride solutions
Assignee: Individual
•
Filing: 1940-03-16
•
Granted: 1943-07-06
•
Expires: 1960-03-16
Abstract
No abstract record available.
Inventors
- 👤 Stadler Robert
- 👤 Auerhahn Albert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 20:25
CPC Classifications
C; C01; C01G; C01G3/00; C01G3/04; C01G3/05; C07; C07C; C07C2/00; C07C2/02; C07C2/04; C07C2/38; C07C2527/00; C07C2527/06; C07C2527/122
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) | 1946-07-05 | 1947-01-04 | 1947-07-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1950-07-05 | 1951-01-04 | 1951-07-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1954-07-05 | 1955-01-04 | 1955-07-06 | $7700.00 | Window Closed / Lapsed |