Patent US2541118A successfully refreshed from Google Patents.
US2541118A
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US
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Resistance element for electric irons
Assignee: BIRTMAN ELECTRIC Co
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Filing: 1945-04-11
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Granted: 1951-02-13
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Expires: 1965-04-11
Abstract
No abstract record available.
Inventors
- 👤 Charles H Sparklin
- 👤 Philip J More
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 17:49
CPC Classifications
D; D06; D06F; D06F75/00; D06F75/08; D06F75/24; H; H05; H05B; H05B3/00; H05B3/20; H05B3/22; H05B3/28; H05B3/30; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/49082; Y10T29/49083
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1147388A
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US1551868A
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US1997844A
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US2048614A
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US2222192A
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US2408886A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-02-12 | 1954-08-14 | 1955-02-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-02-12 | 1958-08-14 | 1959-02-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-02-12 | 1962-08-14 | 1963-02-13 | $7700.00 | Window Closed / Lapsed |