Patent US2624829A successfully refreshed from Google Patents.
US2624829A
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US
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Electric heating device
Assignee: Edwin L Wiegand Co
•
Filing: 1950-11-24
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Granted: 1953-01-06
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Expires: 1970-11-24
Abstract
No abstract record available.
Inventors
- 👤 Walter J Dzaack
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 20:06
CPC Classifications
H; H05; H05B; H05B3/00; H05B3/02; H05B3/06; Y; Y10; Y10S; Y10S277/00; Y10S277/919
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2274445A
Cited
US2471609A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-01-06 | 1956-07-07 | 1957-01-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-01-06 | 1960-07-07 | 1961-01-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-01-06 | 1964-07-07 | 1965-01-06 | $7700.00 | Window Closed / Lapsed |