Patent US2497369A successfully refreshed from Google Patents.
US2497369A
Expired / Lapsed
US
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Method and apparatus for the production of fibers, in particular glass fibers
Assignee: Compagnie de Saint Gobain SA
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Filing: 1945-09-21
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Granted: 1950-02-14
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Expires: 1965-09-21
Abstract
No abstract record available.
Inventors
- 👤 Peyches Ivan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 16:05
CPC Classifications
H; H01; H01J; H01J37/00; H01J37/32; C; C03; C03B; C03B37/00; C03B37/01; C03B37/04
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
50 words
IN COMBINATION WITH A DEVICE FOR THE PRODUCTION OF FIBRES FROM A VITREOUS MATERIAL, A CENTRIFUGE HAVING PERPHERAL OPENINGS THEREIN FOR CONTAINING THE SAID MATERIAL, MEANS FOR HEATING THE MATERIAL IN THE CENTRIFUGE AND AN ANNULAR BURNER SURROUNDING THE CENTRIFUGE TO HEAT THE ISSUING MATERIAL THROUGH A LIMITED ZONE REMOTE
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-02-13 | 1953-08-15 | 1954-02-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-02-13 | 1957-08-15 | 1958-02-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-02-13 | 1961-08-15 | 1962-02-14 | $7700.00 | Window Closed / Lapsed |