Patent US2971146A successfully refreshed from Google Patents.
US3432671A
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Solid state optical pickoff employing planar cruciform detector
Assignee: Conductron Corp
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Filing: 1965-04-14
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Granted: 1969-03-11
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Expires: 1985-04-14
Abstract
No abstract record available.
Inventors
- 👤 Thomas Rhys Edmonds
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 01:34
CPC Classifications
G; G01; G01D; G01D5/00; G01D5/26; G01D5/28; G01D5/30
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3351493A
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US3197643A
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US3223846A
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US3283408A
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US3323408A
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US3277304A
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US3316800A
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US3304430A
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US3354316A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-03-10 | 1972-09-09 | 1973-03-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-03-10 | 1976-09-09 | 1977-03-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-03-10 | 1980-09-09 | 1981-03-11 | $7700.00 | Window Closed / Lapsed |