US3445680A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Logic gate having a variable switching threshold
Assignee: Motorola Solutions Inc
•
Filing: 1965-11-30
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Granted: 1969-05-20
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Expires: 1985-11-30
Abstract
No abstract record available.
Inventors
- 👤 Philip B Foster
- 👤 Richard A Gissel
- 👤 Walter C Seelbach
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 06:56
CPC Classifications
H; H03; H03K; H03K19/00; H03K19/02; H03K19/08; H03K19/0813; H03K19/003; H03K19/00369; H03K19/00376; H03K19/082; H03K19/084
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) | 1972-05-19 | 1972-11-18 | 1973-05-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-05-19 | 1976-11-18 | 1977-05-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-05-19 | 1980-11-18 | 1981-05-20 | $7700.00 | Window Closed / Lapsed |