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US3466550A
Expired / Lapsed
US
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Frequency-to-voltage converter
Assignee: Digitronics Corp
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Filing: 1965-12-06
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Granted: 1969-09-09
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Expires: 1985-12-06
Abstract
No abstract record available.
Inventors
- 👤 Edgar Wolf
- 👤 David E Worster
- 👤 Francis C Marino
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 19:04
CPC Classifications
H; H04; H04L; H04L27/00; H04L27/10; H04L27/14; H04L27/156; H04L27/1563
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
CA606724A
Cited
US2750500A
Cited
US2908865A
Cited
US3038130A
Cited
US3111591A
Cited
US3202834A
Cited
US3383600A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-09-08 | 1973-03-10 | 1973-09-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-09-08 | 1977-03-10 | 1977-09-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-09-08 | 1981-03-10 | 1981-09-09 | $7700.00 | Window Closed / Lapsed |