Patent US2851092A successfully refreshed from Google Patents.
US2851092A
Expired / Lapsed
US
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Gas-fueled furnace burner
Assignee: Individual
•
Filing: 1952-09-12
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Granted: 1958-09-09
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Expires: 1972-09-12
Abstract
No abstract record available.
Inventors
- 👤 Laird C Mckee
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 09:44
CPC Classifications
F; F23; F23D; F23D14/00; F23D14/02; F23D14/04; F23D14/06; F23D14/065; F23C; F23C2203/00; F23C2203/20
Claims Analysis
Total Claims: 0
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US2448232A
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US2609871A
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US2631659A
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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) | 1961-09-08 | 1962-03-10 | 1962-09-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-09-08 | 1966-03-10 | 1966-09-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-09-08 | 1970-03-10 | 1970-09-09 | $7700.00 | Window Closed / Lapsed |