US2699458A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Porous sintered metal bodies for a storage battery
Assignee: BASF SE
•
Filing: 1951-03-09
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Granted: 1955-01-11
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Expires: 1971-03-09
Abstract
No abstract record available.
Inventors
- 👤 Schlecht Leo
- 👤 Oestreicher Ernst
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 14:02
CPC Classifications
H; H01; H01M; H01M4/00; H01M4/02; H01M4/64; H01M4/70; H01M4/80; B; B22; B22F; B22F3/00; B22F3/10; B22F3/11; C; C22; C22B; C22B5/00; C22B5/02; C22B5/20; B22F2998/00; Y; Y02; Y02E; Y02E60/00; Y02E60/10
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-01-10 | 1958-07-12 | 1959-01-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-01-10 | 1962-07-12 | 1963-01-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-01-10 | 1966-07-12 | 1967-01-11 | $7700.00 | Window Closed / Lapsed |