Patent US2860216A successfully refreshed from Google Patents.
US2860216A
Expired / Lapsed
US
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Potentiometric devices
Assignee: Individual
•
Filing: 1956-02-03
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Granted: 1958-11-11
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Expires: 1976-02-03
Abstract
No abstract record available.
Inventors
- 👤 Burton F Hubbard
- 👤 Gaynard H Fosdick
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 15:24
CPC Classifications
F; F16; F16H; F16H25/00; F16H25/18; F16H25/20; H; H01; H01C; H01C10/00; H01C10/30; H01C10/38; H01C10/40; H01C10/42
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1909136A
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US2242327A
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US2306152A
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US2360304A
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US2337202A
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US2411018A
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US2488710A
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US2706230A
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US2777926A
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US2668218A
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US2799757A
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US2687463A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-11-10 | 1962-05-12 | 1962-11-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-11-10 | 1966-05-12 | 1966-11-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-11-10 | 1970-05-12 | 1970-11-11 | $7700.00 | Window Closed / Lapsed |