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US2678991A
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US
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Magnetic unit for electric and gas burners
Assignee: THOMAS W TALBOT
•
Filing: 1951-03-06
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Granted: 1954-05-18
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Expires: 1971-03-06
Abstract
No abstract record available.
Inventors
- 👤 Amfitheatrof Daniele
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 09:44
CPC Classifications
H; H05; H05B; H05B3/00; H05B3/68; H05B3/685
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2012981A
Cited
GB468150A
Cited
US2356004A
Cited
US2415688A
Cited
US2448417A
Cited
US2497753A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-05-17 | 1957-11-16 | 1958-05-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-05-17 | 1961-11-16 | 1962-05-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-05-17 | 1965-11-16 | 1966-05-18 | $7700.00 | Window Closed / Lapsed |