Patent US2845090A successfully refreshed from Google Patents.
US2845090A
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US
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Pressure release valve for battery cells
Assignee: McGraw Edison Co
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Filing: 1955-01-27
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Granted: 1958-07-29
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Expires: 1975-01-27
Abstract
No abstract record available.
Inventors
- 👤 Rost Ernest
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 22:42
CPC Classifications
F; F16; F16K; F16K24/00; F16K24/04; F16K15/00; F16K15/14; F16K15/1401; F16K15/144; F16K15/145; H; H01; H01M; H01M50/00; H01M50/30; H01M50/317; H01M50/325; Y; Y02; Y02E; Y02E60/00; Y02E60/10; Y10; Y10T; Y10T137/00; Y10T137/7722; Y10T137/7837; Y10T137/7838; Y10T137/7839; Y10T137/7842; Y10T137/7866; Y10T137/7867; Y10T137/7868; Y10T137/7879; Y10T137/7888; Y10T137/7889
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US460714A
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US480400A
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US481762A
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US583632A
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US1950325A
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US2294785A
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US2284051A
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US2635628A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-07-28 | 1962-01-27 | 1962-07-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-07-28 | 1966-01-27 | 1966-07-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-07-28 | 1970-01-27 | 1970-07-29 | $7700.00 | Window Closed / Lapsed |