US2827574A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Multivibrators
Assignee: Hoffman Electronics Corp
•
Filing: 1953-08-24
•
Granted: 1958-03-18
•
Expires: 1973-08-24
Abstract
No abstract record available.
Inventors
- 👤 Schneider Seymour
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 03:23
CPC Classifications
H; H04; H04L; H04L25/00; H04L25/02; H03; H03K; H03K3/00; H03K3/02; H03K3/26; H03K3/28; H03K3/281; H03K3/284
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2562660A
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US2550116A
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US2605306A
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US2531076A
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US2707752A
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US2569345A
Cited
US2614140A
Cited
US2620448A
Cited
US2622212A
Cited
US2641717A
Cited
US2663800A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-03-17 | 1961-09-16 | 1962-03-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-03-17 | 1965-09-16 | 1966-03-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-03-17 | 1969-09-16 | 1970-03-18 | $7700.00 | Window Closed / Lapsed |