Patent US2835868A successfully refreshed from Google Patents.
US2835868A
Expired / Lapsed
US
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Voltage to digital measuring circuit
Assignee: Clary Corp
•
Filing: 1952-09-16
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Granted: 1958-05-20
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Expires: 1972-09-16
Abstract
No abstract record available.
Inventors
- 👤 John L Lindesmith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:07
CPC Classifications
H; H03; H03M; H03M1/00; H03M1/66; H03M1/665
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2407320A
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US2418425A
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US2516189A
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US2627031A
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US2672284A
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US2651204A
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US2616965A
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US2767378A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-05-19 | 1961-11-18 | 1962-05-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-05-19 | 1965-11-18 | 1966-05-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-05-19 | 1969-11-18 | 1970-05-20 | $7700.00 | Window Closed / Lapsed |