Patent US2283513A successfully refreshed from Google Patents.
US2283513A
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US
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Hot water storage system and pilotoperated relief device therefor
Assignee: Individual
•
Filing: 1940-01-04
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Granted: 1942-05-19
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Expires: 1960-01-04
Abstract
No abstract record available.
Inventors
- 👤 Smith Chetwood
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 22:26
CPC Classifications
B; B21; B21D; B21D51/00; B21D51/16; B21D51/26; B21D51/30; B21D51/34; F; F24; F24D; F24D19/00; F24D19/10; F24D19/1006; F24D19/1051; F24H; F24H9/00; F24H9/12; F24H9/13; F24H9/133; Y; Y10; Y10T; Y10T137/00; Y10T137/7722; Y10T137/7737; Y10T137/7738; Y10T137/774; Y10T137/7758; Y10T137/7762; Y10T137/7769; Y10T137/777; Y10T137/7781; Y10T137/7835; Y10T137/7836
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) | 1945-05-18 | 1945-11-17 | 1946-05-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1949-05-18 | 1949-11-17 | 1950-05-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1953-05-18 | 1953-11-17 | 1954-05-19 | $7700.00 | Window Closed / Lapsed |