Patent DE496029C successfully refreshed from Google Patents.
Patent US3488670A successfully refreshed from Google Patents.
US3488670A
Expired / Lapsed
US
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Method and apparatus for yarn treatment
Assignee: Owens Corning
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Filing: 1968-04-16
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Granted: 1970-01-06
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Expires: 1988-04-16
Abstract
No abstract record available.
Inventors
- 👤 Gustav E Benson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 18:08
CPC Classifications
D; D02; D02G; D02G1/00; D02G1/16
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2852906A
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US2884756A
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US2874445A
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US2982082A
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US2958112A
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US3380242A
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US2959909A
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US3127729A
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US3178795A
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US3299485A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-01-05 | 1973-07-07 | 1974-01-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-01-05 | 1977-07-07 | 1978-01-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-01-05 | 1981-07-07 | 1982-01-06 | $7700.00 | Window Closed / Lapsed |