Patent US2433134A successfully refreshed from Google Patents.
US2433134A
Expired / Lapsed
US
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Liquid heater
Assignee: Individual
•
Filing: 1944-01-05
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Granted: 1947-12-23
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Expires: 1964-01-05
Abstract
No abstract record available.
Inventors
- 👤 Herbert J Long
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 13:51
CPC Classifications
H; H05; H05B; H05B1/00; H05B1/02; H05B1/0227; H05B1/0252; H05B1/0258; H05B1/0269; A; A47; A47J; A47J37/00; A47J37/12; A47J37/1242; A47J37/1247
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2182735A
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US1069344A
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US1630309A
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US1681334A
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US2059623A
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US2053568A
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US2176869A
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US2177193A
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US2250892A
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US2305039A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1950-12-22 | 1951-06-23 | 1951-12-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-12-22 | 1955-06-23 | 1955-12-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-12-22 | 1959-06-23 | 1959-12-23 | $7700.00 | Window Closed / Lapsed |