US2800614A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electromagnetic control device
Assignee: Baso Inc
•
Filing: 1952-05-08
•
Granted: 1957-07-23
•
Expires: 1972-05-08
Abstract
No abstract record available.
Inventors
- 👤 John H Thornbery
- 👤 Russell B Matthews
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 00:31
CPC Classifications
H; H01; H01F; H01F7/00; H01F7/06; H01F7/08; H01F7/14; H01F7/145; F; F16; F16K; F16K31/00; F16K31/02; F16K31/06; F16K31/10; F16K31/105
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2508379A
Cited
US868230A
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US1647036A
Cited
GB259719A
Cited
US1672193A
Cited
US1979127A
Cited
US2130871A
Cited
US2216620A
Cited
US2274775A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-07-22 | 1961-01-21 | 1961-07-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-07-22 | 1965-01-21 | 1965-07-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-07-22 | 1969-01-21 | 1969-07-23 | $7700.00 | Window Closed / Lapsed |