US3434276A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Production of bulky products of acrylic composite fibers
Assignee: Japan Exlan Co Ltd
•
Filing: 1964-10-09
•
Granted: 1969-03-25
•
Expires: 1984-10-09
Abstract
No abstract record available.
Inventors
- 👤 Yoshimasa Fujita
- 👤 Kazumi Nakagawa
- 👤 Keitaro Shimoda
- 👤 Koji Miyashita
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 22:17
CPC Classifications
D; D02; D02G; D02G1/00; D02G1/18; D01; D01F; D01F8/00; D01F8/04; D01F8/08; Y; Y10; Y10S; Y10S57/00; Y10S57/905
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2439815A
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US2789340A
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US3039524A
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US3038237A
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US3038238A
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US3081516A
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US3038240A
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US3264705A
Cited
US3182106A
Cited
US3111366A
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US3330895A
Cited
US3330896A
Cited
US3161011A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-03-24 | 1972-09-23 | 1973-03-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-03-24 | 1976-09-23 | 1977-03-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-03-24 | 1980-09-23 | 1981-03-25 | $7700.00 | Window Closed / Lapsed |