US2991399A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Solenoid push pin
Assignee: Detroit Coil Co
•
Filing: 1957-06-10
•
Granted: 1961-07-04
•
Expires: 1977-06-10
Abstract
No abstract record available.
Inventors
- 👤 Hollis W Jencks
- 👤 Edmond A Viale
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 00:27
CPC Classifications
H; H01; H01F; H01F7/00; H01F7/06; H01F7/08; H01F7/16; H01F7/1607
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US515778A
Cited
US1680311A
Cited
US2241364A
Cited
US2182030A
Cited
US2356577A
Cited
US2267411A
Cited
US2901617A
Cited
US2561355A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-07-03 | 1965-01-02 | 1965-07-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-07-03 | 1969-01-02 | 1969-07-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-07-03 | 1973-01-02 | 1973-07-04 | $7700.00 | Window Closed / Lapsed |