Patent US2707516A successfully refreshed from Google Patents.
US2707516A
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US
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Single port gas burner construction
Assignee: LENNOX FURNACE Co
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Filing: 1951-08-25
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Granted: 1955-05-03
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Expires: 1971-08-25
Abstract
No abstract record available.
Inventors
- 👤 Theophilus H Smoot
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 09:36
CPC Classifications
F; F23; F23D; F23D14/00; F23D14/02; F23D14/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US160789A
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US1837549A
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US780594A
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US1601857A
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US2183836A
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US2389027A
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US2475240A
Cited
US2467626A
Cited
US2541315A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-05-02 | 1958-11-01 | 1959-05-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-05-02 | 1962-11-01 | 1963-05-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-05-02 | 1966-11-01 | 1967-05-03 | $7700.00 | Window Closed / Lapsed |