Patent US2594094A successfully refreshed from Google Patents.
US2594094A
Expired / Lapsed
US
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Gas burner with flame retention ports
Assignee: Fisher Scientific Co LLC
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Filing: 1948-03-11
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Granted: 1952-04-22
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Expires: 1968-03-11
Abstract
No abstract record available.
Inventors
- 👤 Todd Floyd
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 14:14
CPC Classifications
F; F23; F23D; F23D14/00; F23D14/26
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
FR422597A
Cited
US1259885A
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US1357324A
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DE353632C
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US1480260A
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US1471123A
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US1535491A
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US1835215A
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US1973371A
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US2073448A
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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) | 1955-04-22 | 1955-10-22 | 1956-04-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-04-22 | 1959-10-22 | 1960-04-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-04-22 | 1963-10-22 | 1964-04-22 | $7700.00 | Window Closed / Lapsed |