Patent US4636774A successfully refreshed from Google Patents.
Patent US3526853A successfully refreshed from Google Patents.
US3526853A
Expired / Lapsed
US
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Frequency stabilized multivibrator
Assignee: Centre Electronique Horloger SA
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Filing: 1968-07-05
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Granted: 1970-09-01
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Expires: 1988-07-05
Abstract
No abstract record available.
Inventors
- 👤 Eric Andre Vittoz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 20:09
CPC Classifications
H; H03; H03K; H03K3/00; H03K3/02; H03K3/26; H03K3/28; H03K3/281; H03K3/282; H03K3/2823; H03K3/2826; H03K3/2828
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-08-31 | 1974-03-02 | 1974-09-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-08-31 | 1978-03-02 | 1978-09-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-08-31 | 1982-03-02 | 1982-09-01 | $7700.00 | Window Closed / Lapsed |