US3497910A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for the drawing of synthetic fiber tows
Assignee: Toray Industries Inc
•
Filing: 1967-08-07
•
Granted: 1970-03-03
•
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 18:00
CPC Classifications
D; D02; D02J; D02J1/00; D02J1/22; D02J1/223
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US920776A
Cited
US1604276A
Cited
US2095550A
Cited
US2142913A
Cited
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 |