US2554338A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Water heater
Assignee: Individual
•
Filing: 1947-05-17
•
Granted: 1951-05-22
•
Expires: 1967-05-17
Abstract
No abstract record available.
Inventors
- 👤 Levine Morris
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 08:58
CPC Classifications
F; F24; F24H; F24H1/00; F24H1/22; F24H1/44
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US371269A
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US448932A
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US127476A
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USRE21061E
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DE384263C
Cited
GB189314383A
Cited
US855955A
Cited
US1112583A
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US1458876A
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US1727598A
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US1810774A
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US1942257A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-05-21 | 1954-11-20 | 1955-05-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-05-21 | 1958-11-20 | 1959-05-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-05-21 | 1962-11-20 | 1963-05-22 | $7700.00 | Window Closed / Lapsed |