Patent US3467865A successfully refreshed from Google Patents.
US3467865A
Expired / Lapsed
US
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Logarithmic ratiometer with digital output
Assignee: Applied Biosystems Inc
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Filing: 1965-12-23
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Granted: 1969-09-16
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Expires: 1985-12-23
Abstract
No abstract record available.
Inventors
- 👤 Larkin B Scott
- 👤 George H Keats
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 16:29
CPC Classifications
G; G01; G01N; G01N21/00; G01N21/17; G01N21/25; G01N21/27; G06; G06J; G06J1/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2999206A
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US3087147A
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US3188455A
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US3237190A
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US3296613A
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US3316547A
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US3287723A
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US3368149A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-09-15 | 1973-03-17 | 1973-09-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-09-15 | 1977-03-17 | 1977-09-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-09-15 | 1981-03-17 | 1981-09-16 | $7700.00 | Window Closed / Lapsed |