Patent US3459846A successfully refreshed from Google Patents.
US3459846A
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Method and spinneret device for spinning two-component filaments
Assignee: SNIA Viscosa SpA
•
Filing: 1966-11-15
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Granted: 1969-08-05
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Expires: 1986-11-15
Abstract
No abstract record available.
Inventors
- 👤 Masao Matsui
- 👤 Tsuyoshi Nakamori
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:47
CPC Classifications
D; D01; D01D; D01D5/00; D01D5/28; D01D5/30; D01D5/34; B; B29; B29C; B29C48/00; B29C48/16; B29C48/18; B29C48/03; B29C48/05; B29C48/21; Y; Y10; Y10S; Y10S264/00; Y10S264/26; Y10S425/00; Y10S425/217
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2815532A
Cited
US3075241A
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US2932079A
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US3197812A
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US3341891A
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US3244785A
Cited
US3315021A
Cited
US3375548A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-08-04 | 1973-02-03 | 1973-08-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-08-04 | 1977-02-03 | 1977-08-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-08-04 | 1981-02-03 | 1981-08-05 | $7700.00 | Window Closed / Lapsed |