US3515703A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polyamide filament
Assignee: Kanebo Ltd
•
Filing: 1968-09-26
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Granted: 1970-06-02
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Expires: 1988-09-26
Abstract
No abstract record available.
Inventors
- 👤 Keizo Ueda
- 👤 Tsuneo Ohkawahara
- 👤 Masao Matsui
- 👤 Satoshi Ando
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 14:25
CPC Classifications
D; D01; D01F; D01F8/00; D01F8/04; D01F8/12; C; C08; C08G; C08G69/00; C08G69/02; C08G69/36; Y; Y10; Y10T; Y10T428/00; Y10T428/29; Y10T428/2913; Y10T428/2929; Y10T428/2933; Y10T428/2964; Y10T428/2967; Y10T428/2969
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-06-01 | 1973-12-01 | 1974-06-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-06-01 | 1977-12-01 | 1978-06-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-06-01 | 1981-12-01 | 1982-06-02 | $7700.00 | Window Closed / Lapsed |