US3536804A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for producing polyxyleneadipamide fibers
Assignee: Toyobo Co Ltd
•
Filing: 1968-12-17
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Granted: 1970-10-27
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Expires: 1988-12-17
Abstract
No abstract record available.
Inventors
- 👤 Norihide Fujimoto
- 👤 Takatsuki Yoichi
- 👤 Kenji Suzuki
- 👤 Kanji Kishida
- 👤 Masayoshi Shimada
- 👤 Hideo Ikeda
- 👤 Takashi Kobayashi
- 👤 Kenichi Komoto
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 23:26
CPC Classifications
D; D01; D01F; D01F6/00; D01F6/58; D01F6/60
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
DE1024234B
Cited
US3108091A
Cited
US3361859A
Cited
US3200183A
Cited
US3275732A
Cited
US3379810A
Cited
US3439489A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-10-26 | 1974-04-27 | 1974-10-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-10-26 | 1978-04-27 | 1978-10-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-10-26 | 1982-04-27 | 1982-10-27 | $7700.00 | Window Closed / Lapsed |