Patent US2928888A successfully refreshed from Google Patents.
US2928888A
Expired / Lapsed
US
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Miniature accumulator
Assignee: Individual
•
Filing: 1957-04-19
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Granted: 1960-03-15
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Expires: 1977-04-19
Abstract
No abstract record available.
Inventors
- 👤 Vogt Hans
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 05:51
CPC Classifications
H; H01; H01M; H01M10/00; H01M10/24; H01M10/28; H01M10/286; H01M50/00; H01M50/30; H01M50/342; H01M50/317; H01M50/325; Y; Y02; Y02E; Y02E60/00; Y02E60/10; Y02P; Y02P70/00; Y02P70/50
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2157629A
Cited
US2594711A
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US2594709A
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US2536699A
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US2632784A
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US2610219A
Cited
US2646455A
Cited
US2661388A
Cited
US2708211A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-03-15 | 1963-09-14 | 1964-03-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-03-15 | 1967-09-14 | 1968-03-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-03-15 | 1971-09-14 | 1972-03-15 | $7700.00 | Window Closed / Lapsed |