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Patent US3530690A successfully refreshed from Google Patents.
US3530690A
Expired / Lapsed
US
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Yarn inspection apparatus
Assignee: Appalachian Electronic Instruments Inc
•
Filing: 1968-03-29
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Granted: 1970-09-29
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Expires: 1988-03-29
Abstract
No abstract record available.
Inventors
- 👤 Lawrence Creigh Nickell
- 👤 Raymond Baines Fertig
- 👤 Henry T Sessions
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 17:48
CPC Classifications
D; D04; D04B; D04B35/00; D04B35/10; D04B35/14; D03; D03D; D03D51/00; D03D51/18; D03D51/20; D03D51/28
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2563906A
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US2711093A
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US3041461A
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US3174046A
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US3401267A
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US3379225A
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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) | 1973-09-28 | 1974-03-30 | 1974-09-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-09-28 | 1978-03-30 | 1978-09-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-09-28 | 1982-03-30 | 1982-09-29 | $7700.00 | Window Closed / Lapsed |