US1933772A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Thick walled pressure vessel
Assignee: AO Smith Corp
•
Filing: 1929-04-19
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Granted: 1933-11-07
•
Expires: 1949-04-19
Abstract
No abstract record available.
Inventors
- 👤 Stresau Richard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 08:12
CPC Classifications
F; F17; F17C; F17C1/00; F17C2201/00; F17C2201/01; F17C2201/0104; F17C2201/03; F17C2201/032; F17C2201/05; F17C2201/052; F17C2201/054; F17C2203/00; F17C2203/01; F17C2203/011; F17C2203/06; F17C2203/0602; F17C2203/0612; F17C2203/0614; F17C2203/0617; F17C2203/0634; F17C2203/0636; F17C2205/00; F17C2205/03; F17C2205/0302; F17C2205/0379; F17C2209/00; F17C2209/22; F17C2209/221; F17C2260/00; F17C2260/01; F17C2260/011; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/4935; Y10T29/49387
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) | 1936-11-06 | 1937-05-08 | 1937-11-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1940-11-06 | 1941-05-08 | 1941-11-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1944-11-06 | 1945-05-08 | 1945-11-07 | $7700.00 | Window Closed / Lapsed |