Patent US2474091A successfully refreshed from Google Patents.
US2474091A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Machine for processing storage battery plates
Assignee: EAGIE PICHER Co
•
Filing: 1944-02-25
•
Granted: 1949-06-21
•
Expires: 1964-02-25
Abstract
No abstract record available.
Inventors
- 👤 Melvin F Chubb
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 20:13
CPC Classifications
H; H01; H01M; H01M4/00; H01M4/02; H01M4/14; H01M4/16; H01M4/20; H01M4/21; 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)
US774530A
Cited
GB191401346A
Cited
US1592727A
Cited
US1592691A
Cited
US1659654A
Cited
US1457755A
Cited
US1622304A
Cited
US1565451A
Cited
US1702085A
Cited
US1759600A
Cited
US1748224A
Cited
US1956022A
Cited
US2149813A
Cited
US2149812A
Cited
US2035746A
Cited
US2177299A
Cited
US2068434A
Cited
US2300627A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-06-20 | 1952-12-20 | 1953-06-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-06-20 | 1956-12-20 | 1957-06-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-06-20 | 1960-12-20 | 1961-06-21 | $7700.00 | Window Closed / Lapsed |