Patent US3438416A successfully refreshed from Google Patents.
Patent US2702308A successfully refreshed from Google Patents.
US2702308A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and means for the charging of accumulators or forming of accumulator plates
Assignee: Individual
•
Filing: 1952-04-28
•
Granted: 1955-02-15
•
Expires: 1972-04-28
Abstract
No abstract record available.
Inventors
- 👤 Jansson Oscar Alexius
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 20:08
CPC Classifications
H; H01; H01M; H01M4/00; H01M4/02; H01M4/14; H01M4/16; H01M4/22; H01M10/00; H01M10/42; H01M10/4214; Y; Y02; Y02E; Y02E60/00; Y02E60/10
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-02-14 | 1958-08-16 | 1959-02-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-02-14 | 1962-08-16 | 1963-02-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-02-14 | 1966-08-16 | 1967-02-15 | $7700.00 | Window Closed / Lapsed |