Patent US3600205A successfully refreshed from Google Patents.
US3600205A
Expired / Lapsed
US
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Boric oxide-free glass fibers and compositions for making them
Assignee: Compagnie de Saint Gobain SA
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Filing: 1967-07-07
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Granted: 1971-08-17
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Expires: 1987-07-07
Abstract
Abstract GOOD QUALITY GLASS FIBERS ARE PRODUCED WITH SATISFACTORY PROPERTIES INTER ALIA FOR MAKING MATS, INSULATION AND TEXTILES, AND FOR REINFORCING PLASTICS, AT FIBERING TEMPERATURES MUCH LOWER THAN THOSE USED WITH THE PRESENT, STANDARD FIBERING GLASS, AT LOWER COST, AND IN SOME CASES AT TEMPERATURES WHICH PERMIT THE SUBSTITUTION OF REFRACTORY METALS OTHER THAN PLATINUM IN THE CONSTRUCTION OF FIBERING APPARATUS.
Inventors
- 👤 Jean Claude Breton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 15:02
CPC Classifications
C; C03; C03C; C03C13/00; C03C3/00; C03C3/04; C03C3/076; C03C3/083; C03C3/085; C03C3/087; C03C3/11; C03C3/112
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) | 1974-08-16 | 1975-02-15 | 1975-08-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-08-16 | 1979-02-15 | 1979-08-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-08-16 | 1983-02-15 | 1983-08-17 | $7700.00 | Window Closed / Lapsed |