US3479518A
Expired / Lapsed
US
⏱️ 0.0 years remaining
System for photo-electrically detecting and marking defects in a moving sheet with two distinguishable marking materials
Assignee: Omron Corp
•
Filing: 1965-02-17
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Granted: 1969-11-18
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Expires: 1985-02-17
Abstract
No abstract record available.
Inventors
- 👤 Hiroo Akamatsu
- 👤 Takanobu Morita
- 👤 Mikio Kamei
- 👤 Yasuhiro Nozoe
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 12:41
CPC Classifications
D; D06; D06H; D06H1/00; D06H1/02; D06H3/00; D06H3/08; G; G01; G01N; G01N21/00; G01N21/84; G01N21/88; G01N21/89; G01N21/8901; G01N21/8903; G01N21/892; G01N21/898; G01N21/8983; G01N21/8914; G01N2021/8917
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2229451A
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US2570288A
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US2939963A
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US3105151A
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US3257563A
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US3263086A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-11-17 | 1973-05-19 | 1973-11-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-11-17 | 1977-05-19 | 1977-11-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-11-17 | 1981-05-19 | 1981-11-18 | $7700.00 | Window Closed / Lapsed |