US2610220A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Storage battery electrode
Assignee: Individual
•
Filing: 1948-07-24
•
Granted: 1952-09-09
•
Expires: 1968-07-24
Abstract
No abstract record available.
Inventors
- 👤 Joseph B Brennan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 16:15
CPC Classifications
H; H01; H01M; H01M4/00; H01M4/02; Y; Y10; Y10T; Y10T428/00; Y10T428/12; Y10T428/12014; Y10T428/12028; Y10T428/12035; Y10T428/12042; Y10T428/12444
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1128058A
Cited
AT89926B
Cited
US1509186A
Cited
CH161659A
Cited
US2251913A
Cited
US2330202A
Cited
US2304073A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-09-09 | 1956-03-10 | 1956-09-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-09-09 | 1960-03-10 | 1960-09-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-09-09 | 1964-03-10 | 1964-09-09 | $7700.00 | Window Closed / Lapsed |