US3732181A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polymer composites reinforced with low-melt glass
Assignee: Imperial Chemical Industries Ltd
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Filing: 1971-04-07
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Granted: 1973-05-08
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Expires: 1991-04-07
Abstract
Abstract COMPOSTE MATERIALS OF LOW MELTING INORGANIC OXIDE GLASS AND ORGANIC POLYMERS IN WHICH GLASS AND POLYMER ARE CO-DEFORMABLE AT SUITABLE TEMPRATURES. THE GLASSES HAVE A TRANSFORMATION TEMPERATURE IN HE RANGE 100-400* C. LEAD AND ZINC PHOSPHATE GLASSES ARE PREFERRED. METHODS OF SHAPING COMPOSITES AND FORMING FIBERS IN SITU ARE DESCRIBED.
Inventors
- 👤 N Ray
- 👤 F Sherliker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 11:22
CPC Classifications
C; C03; C03C; C03C3/00; C03C3/12; C03C3/16; C03C3/19; B; B32; B32B; B32B27/00; C03C13/00; C03C3/17; C03C3/21; C08; C08K; C08K3/00; C08K3/40; D; D01; D01F; D01F1/00; D01F1/02; D01F1/10
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-05-07 | 1976-11-06 | 1977-05-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-05-07 | 1980-11-06 | 1981-05-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-05-07 | 1984-11-06 | 1985-05-08 | $7700.00 | Window Closed / Lapsed |