US3108149A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for glass melting
Assignee: Libbey Owens Ford Glass Co
•
Filing: 1959-11-18
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Granted: 1963-10-22
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Expires: 1979-11-18
Abstract
No abstract record available.
Inventors
- 👤 Delmar E Carney
- 👤 Richard E Warren
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 22:46
CPC Classifications
C; C03; C03B; C03B5/00; C03B5/02; C03B5/027; C03B5/03; C03B5/16; C03B5/18; C03B5/183; C03B5/185
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
40 words
A METHOD OF HEATING MOLTEN GLASS FLOWING THROUGH A GLASS MELTING FURNACE FROM THE CHARGING END THEREOF THROUGH A MELTING ZONE AND INTO A REFINING ZONE, THE STEPS OF DIRECTING HEAT ONTO THE SURFACE OF THE GLASS TO CREATE A
Claim 2
Independent Claim
40 words
A METHOD OF HEATING MOLTEN GLASS FLOWING THROUGH A GLASS MELTING FURNACE FROM THE CHARGING END THEREOF THROUGH A MELTING ZONE AND INTO A REFINING ZONE, THE STEPS OF DIRECTING HEAT ONTO THE SURFACE OF THE GLASS TO CREATE A
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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) | 1966-10-21 | 1967-04-22 | 1967-10-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-10-21 | 1971-04-22 | 1971-10-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-10-21 | 1975-04-22 | 1975-10-22 | $7700.00 | Window Closed / Lapsed |