US2833508A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electromagnetic control device
Assignee: Baso Inc
•
Filing: 1952-02-08
•
Granted: 1958-05-06
•
Expires: 1972-02-08
Abstract
No abstract record available.
Inventors
- 👤 Floyd J Bydalek
- 👤 Russell B Matthews
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:47
CPC Classifications
F; F16; F16K; F16K31/00; F16K31/02; F16K31/04; F16K31/041; F16K31/043; F16K31/045
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2353467A
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GB613856A
Cited
US2538700A
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US2541937A
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US2687501A
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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) | 1961-05-05 | 1961-11-04 | 1962-05-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-05-05 | 1965-11-04 | 1966-05-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-05-05 | 1969-11-04 | 1970-05-06 | $7700.00 | Window Closed / Lapsed |