US2674946A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Control device for an electric circuit
Assignee: Saab Bofors AB
•
Filing: 1951-06-12
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Granted: 1954-04-13
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Expires: 1971-06-12
Abstract
No abstract record available.
Inventors
- 👤 Hjelm Karl Erik Waldemar
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 21:11
CPC Classifications
F; F42; F42C; F42C14/00; F42C14/04; F42C14/045; F42C15/00; F42C15/28; F42C15/30; F42C15/38; F42C15/40; F42C19/00; F42C19/06; F42C19/08; F42C19/12; H; H01; H01M; H01M6/00; H01M6/30; H01M6/36; H01M6/38
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB156814A
Cited
US1474548A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-04-12 | 1957-10-12 | 1958-04-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-04-12 | 1961-10-12 | 1962-04-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-04-12 | 1965-10-12 | 1966-04-13 | $7700.00 | Window Closed / Lapsed |