US3772870A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sizing composition and glass fibers sized therewith
Assignee: Owens Corning
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Filing: 1971-06-07
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Granted: 1973-11-20
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Expires: 1991-06-07
Abstract
Abstract A sizing composition for glass fibers is provided, comprising polyvinyl acetate, water dispersible epoxy resin and numerous lubricants, herein the sized glass fibers are used in fiber optics for the transmission of light or images from one point to another, which sizing enables further processing of the glass fibers without substantial loss in transmission.
Inventors
- 👤 R Wong
- 👤 M Flautt
- 👤 R Haines
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 05:32
CPC Classifications
G; G02; G02B; G02B6/00; G02B6/04; C; C03; C03C; C03C25/00; C03C25/10; C03C25/104; C03C25/106; C03C25/24; C03C25/26; C03C25/28; C10; C10M; C10M3/00; C10M2201/00; C10M2201/02; C10M2207/00; C10M2207/02; C10M2207/021; C10M2207/022; C10M2207/10; C10M2207/12; C10M2207/121; C10M2207/122; C10M2207/28; C10M2207/282; C10M2207/34; C10M2209/00; C10M2209/02; C10M2209/04; C10M2209/06; C10M2209/062; C10M2209/10; C10M2209/103; C10M2209/104; C10M2209/109; C10M2209/12; C10M2217/00; C10M2217/02; C10M2217/024; C10M2217/028; C10M2217/06; Y; Y10; Y10T; Y10T428/00; Y10T428/29; Y10T428/2913; Y10T428/2933; Y10T428/2938; Y10T428/2964
Claims Analysis
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References Cited (Backward Citations)
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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) | 1976-11-19 | 1977-05-21 | 1977-11-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-11-19 | 1981-05-21 | 1981-11-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-11-19 | 1985-05-21 | 1985-11-20 | $7700.00 | Window Closed / Lapsed |