Patent US3848406A successfully refreshed from Google Patents.
US3848406A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Glass fiber roving band for fiber reinforced plastics
Assignee: Nitto Boseki Co Ltd
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Filing: 1972-11-06
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Granted: 1974-11-19
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Expires: 1992-11-06
Abstract
Abstract A glass fiber roving band for fiber reinforced plastics, which consists of plural glass fiber rovings arranged in side by side relation to form a substantially flat band and having glass fiber rovings or glass yarns spirally wound around the band to provide a transverse strength of the band.
Inventors
- 👤 K Tabei
- 👤 H Kittaka
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 16:31
CPC Classifications
B; B29; B29C; B29C70/00; B29C70/04; B29C70/06; B29C70/10; B29C70/16; B29C70/20; C; C03; C03B; C03B37/00; C03B37/10; Y; Y10; Y10S; Y10S57/00; Y10S57/902
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
62 words
A flat glass fiber roving band for a fiber reinforced plastics, said band comprising a plurality of untwisted glass fiber rovings arranged in side-by-side relation with each other to provide said flat band, and fibrous means wound around the glass fiber rovings to provide a transverse strength of the band, only the transverse outside rovings being impregnated with synthetic resin before assembly.
Claim 2
Dependent Claim
62 words
A flat glass fiber roving band for a fiber reinforced plastics, said band comprising a plurality of untwisted glass fiber rovings arranged in side-by-side relation with each other to provide said flat band, and fibrous means wound around the glass fiber rovings to provide a transverse strength of the band, only the transverse outside rovings being impregnated with synthetic resin before assembly.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-11-18 | 1978-05-20 | 1978-11-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-11-18 | 1982-05-20 | 1982-11-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-11-18 | 1986-05-20 | 1986-11-19 | $7700.00 | Window Closed / Lapsed |