US3472017A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Specific filament yarns
Assignee: Asahi Kasei Corp
•
Filing: 1965-08-09
•
Granted: 1969-10-14
•
Expires: 1985-08-09
Abstract
No abstract record available.
Inventors
- 👤 Chozo Nakayama
- 👤 Teiichi Kaku
- 👤 Hiizu Aizawa
- 👤 Takeaki Iwamoto
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:00
CPC Classifications
D; D02; D02G; D02G1/00; D02G1/18
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2897042A
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US3157021A
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US3146575A
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US3220085A
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US3107972A
Cited
US3247569A
Cited
US3279163A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-10-13 | 1973-04-14 | 1973-10-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-10-13 | 1977-04-14 | 1977-10-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-10-13 | 1981-04-14 | 1981-10-14 | $7700.00 | Window Closed / Lapsed |