US3573016A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for forming fibers
Assignee: Owens Corning
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Filing: 1968-07-24
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Granted: 1971-03-30
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Expires: 1988-07-24
Abstract
Abstract METHOD AND APPARATUS FOR FORMING FIBERS IN HEAT-SOFTENABLE MATERIAL WHICH INCLUDES MEANS FOR CONTINUOUSLY MELTING MATERIAL TO FORM A MOLTEN POOL OF THE MATERIAL AND FIBER-FORMING MEANS CONNECTED TO RECEIVE MOLTEN MATERIAL FROM THE POOL. MEANS ARE USED TO HEAT THE FIBER-FORMING MEANS. THE LEVEL OF THE MOLTEN POOL IS SENSED. CONTROL MEANS RESPONSIVE TO THE LEVEL SENSING IS UTILIZED TO REGULATE THE AMOUNT OF HEAT SUPPLIED TO THE FIBER-FORMING MEANS. D R A W I N G
Inventors
- 👤 Vernon C Rees
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 19:10
CPC Classifications
C; C03; C03B; C03B5/00; C03B5/16; C03B5/24; C03B5/245; C03B3/00; C03B37/00; C03B37/08; C03B7/00; C03B7/02; C03B7/06; G; G05; G05D; G05D23/00; G05D23/19; G05D23/20; G05D23/22; G05D23/2236; G05D23/224
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-03-29 | 1974-09-28 | 1975-03-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-03-29 | 1978-09-28 | 1979-03-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-03-29 | 1982-09-28 | 1983-03-30 | $7700.00 | Window Closed / Lapsed |