US2565313A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Construction of hot-water tanks
Assignee: AO Smith Corp
•
Filing: 1946-06-24
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Granted: 1951-08-21
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Expires: 1966-06-24
Abstract
No abstract record available.
Inventors
- 👤 Francis W Lauck
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 20:24
CPC Classifications
B; B21; B21D; B21D51/00; B21D51/16; B21D51/26; B21D51/2653; B21D51/2661; A; A47; A47J; A47J27/00; A47J27/10; Y; Y10; Y10S; Y10S220/00; Y10S220/917; Y10T; Y10T29/00; Y10T29/49; Y10T29/49826; Y10T29/49885
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US943687A
Cited
US1330704A
Cited
US2199528A
Cited
US2263021A
Cited
US2362909A
Cited
US2332454A
Cited
US2335153A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-08-20 | 1955-02-19 | 1955-08-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-08-20 | 1959-02-19 | 1959-08-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-08-20 | 1963-02-19 | 1963-08-21 | $7700.00 | Window Closed / Lapsed |