US1921241A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrically welded high pressure storage tank
Assignee: AO Smith Corp
•
Filing: 1929-10-31
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Granted: 1933-08-08
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Expires: 1949-10-31
Abstract
No abstract record available.
Inventors
- 👤 Arthur W Priebe
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 09:54
CPC Classifications
F; F17; F17C; F17C1/00; F17C2201/00; F17C2201/01; F17C2201/0104; F17C2201/0119; F17C2201/0138; F17C2201/05; F17C2201/054; F17C2201/056; F17C2203/00; F17C2203/06; F17C2203/0602; F17C2203/0612; F17C2203/0614; F17C2203/0617; F17C2203/0634; F17C2203/0636; F17C2209/00; F17C2209/22; F17C2209/221; F17C2209/23; F17C2209/234; F17C2221/00; F17C2221/01; F17C2221/016; F17C2221/017; F17C2223/00; F17C2223/01; F17C2223/0107; F17C2223/0123; F17C2223/03; F17C2223/035; F17C2223/036; F17C2260/00; F17C2260/01; F17C2260/011; F17C2260/012; Y; Y10; Y10S; Y10S122/00; Y10S122/16
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) | 1936-08-07 | 1937-02-06 | 1937-08-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1940-08-07 | 1941-02-06 | 1941-08-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1944-08-07 | 1945-02-06 | 1945-08-08 | $7700.00 | Window Closed / Lapsed |