US2456698A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electric water heater
Assignee: UNITED STATES MOTOR Corp
•
Filing: 1945-10-10
•
Granted: 1948-12-21
•
Expires: 1965-10-10
Abstract
No abstract record available.
Inventors
- 👤 Stanley W Hall
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 00:48
CPC Classifications
F; F24; F24H; F24H1/00; F24H1/18; F24H1/20; F24H1/201; F24H1/202; F24H9/00; F24H9/0005; F24H9/001; F24H9/0015; F24H9/0021; F24H9/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1321071A
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US1034952A
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US1620537A
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US1698596A
Cited
US1857510A
Cited
US1916066A
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US1863273A
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US2269448A
Cited
US2262403A
Cited
US2299053A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-12-21 | 1952-06-21 | 1952-12-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-12-21 | 1956-06-21 | 1956-12-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-12-21 | 1960-06-21 | 1960-12-21 | $7700.00 | Window Closed / Lapsed |