US3527613A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of loading iron-sulfur active material into porous metallic plaques
Assignee: Westinghouse Electric Corp
•
Filing: 1969-01-06
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Granted: 1970-09-08
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Expires: 1989-01-06
Abstract
No abstract record available.
Inventors
- 👤 Carl C Hardman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 01:43
CPC Classifications
H; H01; H01M; H01M4/00; H01M4/02; H01M4/24; H01M4/26; H01M4/28; H01M4/29; Y; Y02; Y02E; Y02E60/00; Y02E60/10
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB190703711A
Cited
US1761740A
Cited
US2588170A
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US2737541A
Cited
US3066178A
Cited
US2871281A
Cited
US3184338A
Cited
US3345212A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-09-07 | 1974-03-09 | 1974-09-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-09-07 | 1978-03-09 | 1978-09-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-09-07 | 1982-03-09 | 1982-09-08 | $7700.00 | Window Closed / Lapsed |