US3526822A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Storage battery cell and storage battery
Assignee: VARTA AG
•
Filing: 1966-12-06
•
Granted: 1970-09-01
•
Expires: 1986-12-06
Abstract
No abstract record available.
Inventors
- 👤 Siegfried Dickfeldt
- 👤 Freimut Peters
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 07:16
CPC Classifications
H; H01; H01M; H01M6/00; H01M6/50; H01M6/5005; G; G01; G01R; G01R31/00; G01R31/36; G01R31/378; H01M10/00; H01M10/42; Y; Y02; Y02E; Y02E60/00; Y02E60/10
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3258670A
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US2131592A
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US2934580A
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US2951106A
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US3005943A
Cited
US2988590A
Cited
US2980747A
Cited
US3080440A
Cited
US3208880A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-08-31 | 1974-03-02 | 1974-09-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-08-31 | 1978-03-02 | 1978-09-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-08-31 | 1982-03-02 | 1982-09-01 | $7700.00 | Window Closed / Lapsed |