Patent US2454100A successfully refreshed from Google Patents.
US2454100A
Expired / Lapsed
US
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Battery plate separator
Assignee: Owens Corning
•
Filing: 1943-12-20
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Granted: 1948-11-16
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Expires: 1963-12-20
Abstract
No abstract record available.
Inventors
- 👤 Slayter Games
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 23:28
CPC Classifications
H; H01; H01M; H01M50/00; H01M50/40; H01M50/409; H01M50/44; H01M50/431; H01M50/434; H01M50/437; H01M50/449; H01M50/451; H01M50/457; H01M50/489; H01M50/403; H01M50/406; Y; Y02; Y02E; Y02E60/00; Y02E60/10
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US704759A
Cited
US792612A
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FR369172A
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GB190621472A
Cited
US2117371A
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US2176427A
Cited
FR810810A
Cited
FR49358E
Cited
FR844212A
Cited
US2344614A
Cited
US2360658A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-11-16 | 1952-05-17 | 1952-11-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-11-16 | 1956-05-17 | 1956-11-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-11-16 | 1960-05-17 | 1960-11-16 | $7700.00 | Window Closed / Lapsed |