US2519281A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Water heater and storage unit
Assignee: Individual
•
Filing: 1946-11-14
•
Granted: 1950-08-15
•
Expires: 1966-11-14
Abstract
No abstract record available.
Inventors
- 👤 Glenn E Presser
- 👤 Wheeler George
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 20:11
CPC Classifications
F; F24; F24S; F24S10/00; Y; Y02; Y02E; Y02E10/00; Y02E10/40; Y02E10/44
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US695136A
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US1130871A
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US807642A
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US1162505A
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US1250260A
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US1889238A
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US1971242A
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FR724819A
Cited
US2122821A
Cited
US2154216A
Cited
FR835819A
Cited
FR828212A
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US2274492A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-08-14 | 1954-02-13 | 1954-08-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-08-14 | 1958-02-13 | 1958-08-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-08-14 | 1962-02-13 | 1962-08-15 | $7700.00 | Window Closed / Lapsed |