US2849626A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Monostable circuit
Assignee: AT&T Inc
•
Filing: 1955-04-15
•
Granted: 1958-08-26
•
Expires: 1975-04-15
Abstract
No abstract record available.
Inventors
- 👤 Claude D Klapp
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 02:39
CPC Classifications
H; H03; H03K; H03K5/00; H03K5/01; H03K5/04; H03K3/00; H03K3/02; H03K3/26; H03K3/28; H03K3/281; H03K3/284; H03K4/00; H03K4/06; H03K4/08; H03K4/48; H03K4/50
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2350069A
Cited
US2431766A
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US2414486A
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US2519802A
Cited
US2620448A
Cited
US2730576A
Cited
US2663806A
Cited
US2728857A
Cited
US2663800A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-08-25 | 1962-02-24 | 1962-08-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-08-25 | 1966-02-24 | 1966-08-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-08-25 | 1970-02-24 | 1970-08-26 | $7700.00 | Window Closed / Lapsed |