Patent US3334153A successfully refreshed from Google Patents.
US3334153A
Expired / Lapsed
US
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Mixture of polyamide, polystyrene, and polyamide-styrene graft copolymer
Assignee: Kurashiki Rayon Co Ltd
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Filing: 1965-05-13
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Granted: 1967-08-01
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Expires: 1985-05-13
Abstract
No abstract record available.
Inventors
- 👤 Fukushima Osamu
- 👤 Onishi Shigekazu
- 👤 Otsubo Ryuichi
- 👤 Hayanami Hiroshi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 12:52
CPC Classifications
D; D01; D01F; D01F6/00; D01F6/44; D01F6/56; C; C08; C08F; C08F283/00; C08F283/04; C08L; C08L25/00; C08L25/02; C08L25/04; C08L25/06; C08L77/00; C08L77/02; D01F6/88; D01F6/90
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
64 words
A POLYAMIDE-POLYSTRENE FIBER CONSISTING SUBSTANTIALLY OF 99 TO 95 PARTS BY WEIGHT OF A MIXTURE OF 20 TO 50 PERCENT BY WEIGHT OF POLYAMIDE AND 80 TO 50 PERCENT BY WEIGHT OF POLYSTYRENE, AND 1 TO 5 PARTS BY WEIGHT OF A GRAFT COPOLYMER SELECTED FROM THE GROUP CONSISTING OF A POLYAMIDE-GRAFT-COPOLYMERIZED WITH STYRENE, A POLYSTYRENE GRAFT-COPOLYMERIZED WITH EPSILON-CAPROLACTAM, AND A STYRENE-EPSILON-CAPROLACIAM GRAFT COPOLYMER.
Claim 2
Dependent Claim
64 words
A POLYAMIDE-POLYSTRENE FIBER CONSISTING SUBSTANTIALLY OF 99 TO 95 PARTS BY WEIGHT OF A MIXTURE OF 20 TO 50 PERCENT BY WEIGHT OF POLYAMIDE AND 80 TO 50 PERCENT BY WEIGHT OF POLYSTYRENE, AND 1 TO 5 PARTS BY WEIGHT OF A GRAFT COPOLYMER SELECTED FROM THE GROUP CONSISTING OF A POLYAMIDE-GRAFT-COPOLYMERIZED WITH STYRENE, A POLYSTYRENE GRAFT-COPOLYMERIZED WITH EPSILON-CAPROLACTAM, AND A STYRENE-EPSILON-CAPROLACIAM GRAFT COPOLYMER.
References Cited (Backward Citations)
GB872515A
Cited
US3088791A
Cited
US3236914A
Cited
GB899567A
Cited
DE1131883B
Cited
US3134746A
Cited
US3218371A
Cited
US3243478A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-07-31 | 1971-01-30 | 1971-08-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-07-31 | 1975-01-30 | 1975-08-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-07-31 | 1979-01-30 | 1979-08-01 | $7700.00 | Window Closed / Lapsed |