US2331450A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rechargeable storage battery
Assignee: Sonotone Corp
•
Filing: 1939-11-28
•
Granted: 1943-10-12
•
Expires: 1959-11-28
Abstract
No abstract record available.
Inventors
- 👤 Baum Jasper
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 13:51
CPC Classifications
H; H01; H01M; H01M6/00; H01M6/50; H01M6/5044; H01M6/505; H01M10/00; H01M10/06; H01M10/12; H01M50/00; H01M50/10; H01M50/172; H01M50/174; H01M50/30; H01M50/35; H01M50/367; H01M50/392; Y; Y02; Y02E; Y02E60/00; Y02E60/10; Y02P; Y02P70/00; Y02P70/50
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) | 1946-10-11 | 1947-04-12 | 1947-10-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1950-10-11 | 1951-04-12 | 1951-10-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1954-10-11 | 1955-04-12 | 1955-10-12 | $7700.00 | Window Closed / Lapsed |