Patent US5070635A successfully refreshed from Google Patents.
Patent US3497910A successfully refreshed from Google Patents.
US3497910A
Expired / Lapsed
US
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Apparatus for the drawing of synthetic fiber tows
Assignee: Toray Industries Inc
•
Filing: 1967-08-07
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Granted: 1970-03-03
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Expires: 1987-08-07
Abstract
No abstract record available.
Inventors
- 👤 Katsunosuke Maeda
- 👤 Akihiro Shinkai
- 👤 Masumi Fujiura
- 👤 Hiroyuki Watanabe
- 👤 Yoshio Kagiya
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 18:19
CPC Classifications
D; D02; D02J; D02J1/00; D02J1/22; D02J1/223
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US920776A
Cited
US1604276A
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US2095550A
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US2142913A
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GB585368A
Cited
US2522211A
Cited
FR1028103A
Cited
US2795839A
Cited
US2960963A
Cited
US3045315A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-03-02 | 1973-09-01 | 1974-03-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-03-02 | 1977-09-01 | 1978-03-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-03-02 | 1981-09-01 | 1982-03-03 | $7700.00 | Window Closed / Lapsed |