Patent US2649487A successfully refreshed from Google Patents.
US2649487A
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Immersion heater for bushing for fiber glass manufacture
Assignee: Gustin Bacon Manufacturing Co
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Filing: 1949-07-27
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Granted: 1953-08-18
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Expires: 1969-07-27
Abstract
No abstract record available.
Inventors
- 👤 Marion W Phillips
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 14:26
CPC Classifications
C; C03; C03B; C03B37/00; C03B37/08; C03B37/09; C03B37/091
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
DE183287C
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DE133889C
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DE629709C
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FR14338E
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GB341383A
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US2125912A
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GB433547A
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GB511857A
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US2235352A
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US2227357A
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US2335125A
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US2465137A
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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) | 1956-08-17 | 1957-02-16 | 1957-08-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-08-17 | 1961-02-16 | 1961-08-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-08-17 | 1965-02-16 | 1965-08-18 | $7700.00 | Window Closed / Lapsed |