US2841213A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gas burner apparatus for forming glass fibers
Assignee: Owens Corning
•
Filing: 1952-04-10
•
Granted: 1958-07-01
•
Expires: 1972-04-10
Abstract
No abstract record available.
Inventors
- 👤 Piolenc Gerard De
- 👤 Charles J Stalego
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 18:32
CPC Classifications
F; F23; F23C; F23C3/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1677811A
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US1213470A
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US1238011A
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US1495164A
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US2386746A
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US2417445A
Cited
US2578100A
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US2551114A
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US2563028A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-06-30 | 1961-12-30 | 1962-07-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-06-30 | 1965-12-30 | 1966-07-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-06-30 | 1969-12-30 | 1970-07-01 | $7700.00 | Window Closed / Lapsed |