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Patent US3497694A successfully refreshed from Google Patents.
US3497694A
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Optical scanning head with four optical transmission lines and photosensors
Assignee: Vyzkumny Ustav Matematickych Stroju
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Filing: 1967-01-09
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Granted: 1970-02-24
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Expires: 1987-01-09
Abstract
No abstract record available.
Inventors
- 👤 Stanislav Jura
- 👤 Jaroslav Toifl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 09:27
CPC Classifications
B; B23; B23Q; B23Q35/00; B23Q35/04; B23Q35/24; B23Q35/38; B23Q35/40; G; G01; G01N; G01N21/00; G01N21/17; G01N21/47; G01N21/4738; G01N21/474; G06; G06K; G06K11/00; G06K11/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2419641A
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US2445041A
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US2851643A
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US2872590A
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US3135857A
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US3182291A
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US3207904A
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US3190159A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-02-23 | 1973-08-25 | 1974-02-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-02-23 | 1977-08-25 | 1978-02-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-02-23 | 1981-08-25 | 1982-02-24 | $7700.00 | Window Closed / Lapsed |