Patent US2724734A successfully refreshed from Google Patents.
US2724734A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrode for electric batteries
Assignee: Yardney International Corp
•
Filing: 1952-11-22
•
Granted: 1955-11-22
•
Expires: 1972-11-22
Abstract
No abstract record available.
Inventors
- 👤 Paul L Howard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 22:39
CPC Classifications
H; H01; H01M; H01M4/00; H01M4/02; H01M4/24; H01M4/26; H01M4/64; H01M4/70; H01M4/72; H01M4/74; H01M4/75; 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.
References Cited (Backward Citations)
US489315A
Cited
US940043A
Cited
US994451A
Cited
US1228551A
Cited
US1381387A
Cited
US1895397A
Cited
US2050172A
Cited
US2389894A
Cited
US2561943A
Cited
US2594710A
Cited
US2654795A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-11-21 | 1959-05-23 | 1959-11-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-11-21 | 1963-05-23 | 1963-11-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-11-21 | 1967-05-23 | 1967-11-22 | $7700.00 | Window Closed / Lapsed |