Patent US1069374A successfully refreshed from Google Patents.
US1069374A
Expired / Lapsed
US
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Method of producing hot water by means of electricity and apparatus therefor.
Assignee: ELECTRIC HEAT STORAGE Co
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Filing: 1911-01-23
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Granted: 1913-08-05
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Expires: 1931-01-23
Abstract
No abstract record available.
Inventors
- 👤 George Gilbert Bell
- 👤 John St Vincent Pletts
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 09:35
CPC Classifications
F; F24; F24F; F24F5/00; F24F5/0096; A; A61; A61C; A61C19/00
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) | 1916-08-04 | 1917-02-03 | 1917-08-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1920-08-04 | 1921-02-03 | 1921-08-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1924-08-04 | 1925-02-03 | 1925-08-05 | $7700.00 | Window Closed / Lapsed |