Patent US2670620A successfully refreshed from Google Patents.
US2670620A
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Flexible electric heating element
Assignee: Individual
•
Filing: 1950-08-29
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Granted: 1954-03-02
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Expires: 1970-08-29
Abstract
No abstract record available.
Inventors
- 👤 Goldstaub Henry Herbert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 19:25
CPC Classifications
H; H05; H05B; H05B3/00; H05B3/20; H05B3/34; H05B3/342; H05B3/345; D; D04; D04B; D04B21/00; D04B21/14; D10; D10B; D10B2403/00; D10B2403/03; D10B2403/031; D10B2403/0311; H05B2203/00; H05B2203/011; H05B2203/014; H05B2203/017; H05B2203/036
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB205314A
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US2372673A
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US1234927A
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US1553461A
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US1593359A
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US1965542A
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US2078050A
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US2307231A
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US2396099A
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US2511540A
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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) | 1957-03-01 | 1957-08-31 | 1958-03-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-03-01 | 1961-08-31 | 1962-03-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-03-01 | 1965-08-31 | 1966-03-02 | $7700.00 | Window Closed / Lapsed |