US2862641A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pressure control device
Assignee: Accumulatoren Fabrik AG
•
Filing: 1956-03-07
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Granted: 1958-12-02
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Expires: 1976-03-07
Abstract
No abstract record available.
Inventors
- 👤 Philipp Fritz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 09:32
CPC Classifications
F; F16; F16K; F16K17/00; F16K17/02; F16K17/14; F16K17/16; F16K17/162; F16K17/1633; H; H01; H01M; H01M50/00; H01M50/30; H01M50/308; Y; Y02; Y02E; Y02E60/00; Y02E60/10
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
FR808634A
Cited
US2233804A
Cited
US2523068A
Cited
US2499018A
Cited
US2576431A
Cited
US2548744A
Cited
US2758749A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-12-01 | 1962-06-02 | 1962-12-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-12-01 | 1966-06-02 | 1966-12-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-12-01 | 1970-06-02 | 1970-12-02 | $7700.00 | Window Closed / Lapsed |