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US2495684A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Multivibrator
Assignee: Farnsworth Research Corp
•
Filing: 1945-06-02
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Granted: 1950-01-31
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Expires: 1965-06-02
Abstract
No abstract record available.
Inventors
- 👤 Arnold H Bartels
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 12:52
CPC Classifications
H; H03; H03K; H03K3/00; H03K3/02; H03K3/04; H03K3/05; H03K3/06; H03K3/10; H03K3/08
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2050059A
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US2262838A
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US2266526A
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US2272070A
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GB555078A
Cited
US2418127A
Cited
US2441579A
Cited
US2373145A
Cited
US2390608A
Cited
US2422205A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-01-30 | 1953-08-01 | 1954-01-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-01-30 | 1957-08-01 | 1958-01-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-01-30 | 1961-08-01 | 1962-01-31 | $7700.00 | Window Closed / Lapsed |