Patent US2594062A successfully refreshed from Google Patents.
US2594062A
Expired / Lapsed
US
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Oil-fired conversion burner
Assignee: NORMAN PRODUCTS Co
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Filing: 1948-09-16
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Granted: 1952-04-22
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Expires: 1968-09-16
Abstract
No abstract record available.
Inventors
- 👤 Jr Edward A Norman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 21:11
CPC Classifications
F; F23; F23D; F23D5/00; F23D5/02; F23D5/04; F23D5/045
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1971269A
Cited
US2183836A
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US2191272A
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US2251055A
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US2258043A
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US2364591A
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US2390059A
Cited
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 |