US3519930A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Normalization circuits for potentiometer devices using constant source impedance voltage dividers
Assignee: Individual
•
Filing: 1966-05-02
•
Granted: 1970-07-07
•
Expires: 1986-05-02
Abstract
No abstract record available.
Inventors
- 👤 Frank R Bradley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 12:34
CPC Classifications
G; G01; G01R; G01R1/00; G01R1/28
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2784369A
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US2894197A
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US3015790A
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GB863591A
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US3238443A
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US3308375A
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US3270275A
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US3262049A
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US3377555A
Cited
US3320526A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-07-06 | 1974-01-05 | 1974-07-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-07-06 | 1978-01-05 | 1978-07-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-07-06 | 1982-01-05 | 1982-07-07 | $7700.00 | Window Closed / Lapsed |