Patent US3541198A successfully refreshed from Google Patents.
US3541198A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for manufacturing composite filaments
Assignee: Individual
•
Filing: 1969-03-19
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Granted: 1970-11-17
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Expires: 1989-03-19
Abstract
No abstract record available.
Inventors
- 👤 Keizo Ueda
- 👤 Satoshi Ando
- 👤 Masao Matsui
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 19:30
CPC Classifications
D; D01; D01D; D01D5/00; D01D5/28; D01D5/30; D01D5/32; D01D5/34; D02; D02G; D02G1/00; D02G1/10; D02G1/14
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2041798A
Cited
GB558297A
Cited
US2815532A
Cited
GB722756A
Cited
US2989798A
Cited
US2987797A
Cited
US3023483A
Cited
US3024517A
Cited
US3038240A
Cited
US3184822A
Cited
US3217074A
Cited
US3388198A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-11-16 | 1974-05-18 | 1974-11-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-11-16 | 1978-05-18 | 1978-11-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-11-16 | 1982-05-18 | 1982-11-17 | $7700.00 | Window Closed / Lapsed |