Patent US2590703A successfully refreshed from Google Patents.
US2590703A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Storage battery plate and method of forming same
Assignee: Willard Storage Battery Co
•
Filing: 1949-09-24
•
Granted: 1952-03-25
•
Expires: 1969-09-24
Abstract
No abstract record available.
Inventors
- 👤 Homan John
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 21:31
CPC Classifications
H; H01; H01M; H01M4/00; H01M4/02; H01M4/64; H01M4/70; H01M4/72; Y; Y02; Y02E; Y02E60/00; Y02E60/10; Y10; Y10T; Y10T428/00; Y10T428/12; Y10T428/12229; Y10T428/12236; Y10T428/12264; Y10T428/12361
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US700869A
Cited
US1381387A
Cited
US1378461A
Cited
US1600083A
Cited
US1802818A
Cited
US2156379A
Cited
US2277234A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-03-25 | 1955-09-24 | 1956-03-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-03-25 | 1959-09-24 | 1960-03-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-03-25 | 1963-09-24 | 1964-03-25 | $7700.00 | Window Closed / Lapsed |