US2569699A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for forming glass fibers
Assignee: Owens Corning
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Filing: 1947-05-06
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Granted: 1951-10-02
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Expires: 1967-05-06
Abstract
No abstract record available.
Inventors
- 👤 Charles J Stalego
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 04:57
CPC Classifications
C; C03; C03B; C03B37/00; C03B37/01; C03B37/06; C03B37/065
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
109 words
APPARATUS FOR PRODUCING GLASS FIBERS COMPRISING A BURNER HAVING A CHAMBER IN WHICH A COMBUSTIBLE GASEOUS MIXTURE IS IGNITED AND HAVING AN OUTLET OPENING RESTRICTED TO DISCHARGE THE PRODUCTS OF COMBUSTION IN THE FORM OF A BLAST HAVING A TEMPERATURE IN EXCESS OF THE MELTING TEMPERATURE OF GLASS AND HAVING A VELOCITY SUFFICIENT TO ATTENUATE THE MOLTEN GLASS INTO FIBERS, MEANS FOR FEEDING A GLASS FILAMENT INTO THE BLAST FROM ONE SIDE AT A POINT ADJACENT AND OUTWARDLY OF THE OUTLET OPENING, AND MEANS AT OPPOSITE SIDES OF THE OUTLET OPENING FOR DISCHARGING A COMBUSTIBLE GASEOUS MEDIUM AGAINST THE BLAST IN THE GENERAL DIRECTION OF FLOW OF THE BLAST.
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) | 1954-10-01 | 1955-04-02 | 1955-10-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-10-01 | 1959-04-02 | 1959-10-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-10-01 | 1963-04-02 | 1963-10-02 | $7700.00 | Window Closed / Lapsed |