US2433631A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Weld fabricated yoke
Assignee: AO Smith Corp
•
Filing: 1944-01-27
•
Granted: 1947-12-30
•
Expires: 1964-01-27
Abstract
No abstract record available.
Inventors
- 👤 Donald W Sherman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 22:27
CPC Classifications
B; B23; B23K; B23K9/00; B23K9/0026; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49826; Y10T29/49893
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US619550A
Cited
US1262786A
Cited
US1418087A
Cited
FR663940A
Cited
FR665331A
Cited
US2089889A
Cited
US2057897A
Cited
GB526352A
Cited
US2218127A
Cited
US2299935A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1950-12-29 | 1951-06-30 | 1951-12-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-12-29 | 1955-06-30 | 1955-12-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-12-29 | 1959-06-30 | 1959-12-30 | $7700.00 | Window Closed / Lapsed |