US3429684A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Glass melting furnace with vacuum feed means
Assignee: AGC Glass Europe SA
•
Filing: 1967-05-18
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Granted: 1969-02-25
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Expires: 1987-05-18
Abstract
No abstract record available.
Inventors
- 👤 Emile Plumat
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 18:19
CPC Classifications
C; C03; C03B; C03B5/00; C03B5/16; C03B5/225; C03B3/00; C03B5/02; C03B5/027; C03B5/0275; C03B5/033; C03B5/0336; C03B5/12
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1598308A
Cited
US2465283A
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US2877280A
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US2935395A
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US2963530A
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US3019275A
Cited
US3078326A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-02-25 | 1972-08-26 | 1973-02-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-02-25 | 1976-08-26 | 1977-02-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-02-25 | 1980-08-26 | 1981-02-25 | $7700.00 | Window Closed / Lapsed |