US3144565A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Transformer coupled multivibrator
Assignee: Revvity Inc
•
Filing: 1962-08-15
•
Granted: 1964-08-11
•
Expires: 1982-08-15
Abstract
No abstract record available.
Inventors
- 👤 Charles S Coffey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 12:45
CPC Classifications
H; H03; H03K; H03K3/00; H03K3/02; H03K3/26; H03K3/30; H03K3/01; H03K3/012
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2759104A
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US2880330A
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US2932795A
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US2943212A
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US3018387A
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US3042915A
Cited
US2930907A
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US2997602A
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US3045127A
Cited
US3066231A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-08-11 | 1968-02-10 | 1968-08-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-08-11 | 1972-02-10 | 1972-08-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-08-11 | 1976-02-10 | 1976-08-11 | $7700.00 | Window Closed / Lapsed |