Patent US3651804A successfully refreshed from Google Patents.
US888381A
Expired / Lapsed
US
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Electric heating device.
Assignee: General Electric Co
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Filing: 1907-09-18
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Granted: 1908-05-19
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Expires: 1927-09-18
Abstract
No abstract record available.
Inventors
- 👤 William S Andrews
- 👤 Henry J Mauger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 15:40
CPC Classifications
H; H05; H05B; H05B1/00; H05B1/02; H05B1/0202; H05B1/0213
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1911-05-19 | 1911-11-18 | 1912-05-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1915-05-19 | 1915-11-18 | 1916-05-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1919-05-19 | 1919-11-18 | 1920-05-19 | $7700.00 | Window Closed / Lapsed |