US3676099A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Glass melting furnace and control means for the flow of molten silicates therein
Assignee: Individual
•
Filing: 1970-02-17
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Granted: 1972-07-11
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Expires: 1990-02-17
Abstract
Abstract A throat-type glass melting furnace provided with variable radiation control means for controlling the flow of molten silicates therein. The control means is characterized by a variable radiation retarding meansunderlying a radiation area of the furnace bottom along the path of flow of molten silicates through the furnace throat so as to controllably and efficiently dissipate heat from the molten silicates at a specific location and in a controlled manner.
Inventors
- 👤 Palmer Fultz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 03:46
CPC Classifications
C; C03; C03B; C03B5/00; C03B5/16; C03B5/42; C03B5/20; C03B5/24
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) | 1975-07-11 | 1976-01-10 | 1976-07-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-07-11 | 1980-01-10 | 1980-07-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-07-11 | 1984-01-10 | 1984-07-11 | $7700.00 | Window Closed / Lapsed |