US3622293A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for manufacturing glass fibers
Assignee: MILES S FIRNHABER
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Filing: 1968-12-10
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Granted: 1971-11-23
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Expires: 1988-12-10
Abstract
Abstract There is a cup-shaped rotor to receive molten glass and there is a lining for the rim portion and bottom of the rotor, the rim portion of the lining being apertured and spaced from an apertured rim portion of the rotor, there being an annular partition subdividing the annular space into an outer annular hot gas chamber and an inner annular molten glass-receiving chamber, said hot gas chamber having openings to receive hot gases from a burner during rotation of the rotor, and said lining being formed principally of lapped sector-shaped segments.
Inventors
- 👤 Miles S Firnhaber
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 15:10
CPC Classifications
C; C03; C03B; C03B37/00; C03B37/01; C03B37/04; C03B37/045; C03B37/048
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2949631A
Cited
US3393986A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-11-22 | 1975-05-24 | 1975-11-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-11-22 | 1979-05-24 | 1979-11-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-11-22 | 1983-05-24 | 1983-11-23 | $7700.00 | Window Closed / Lapsed |