Patent US2772608A successfully refreshed from Google Patents.
Patent US2436808A successfully refreshed from Google Patents.
US2436808A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Multivibrator
Assignee: STC PLC
•
Filing: 1942-06-02
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Granted: 1948-03-02
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Expires: 1962-06-02
Abstract
No abstract record available.
Inventors
- 👤 Jacobsen Bent Bulow
- 👤 Levy Maurice Moise
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 12:36
CPC Classifications
H; H03; H03K; H03K3/00; H03K3/02; H03K3/04; H03K3/05; H03K3/06; H03K3/08
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1744835A
Cited
US2283653A
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US2212967A
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US2158285A
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US2265290A
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US2265996A
Cited
US2212173A
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US2212420A
Cited
US2221666A
Cited
US2404047A
Cited
US2401405A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-03-02 | 1951-09-01 | 1952-03-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-03-02 | 1955-09-01 | 1956-03-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-03-02 | 1959-09-01 | 1960-03-02 | $7700.00 | Window Closed / Lapsed |