US2460418A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electric motor
Assignee: AO Smith Corp
•
Filing: 1944-08-18
•
Granted: 1949-02-01
•
Expires: 1964-08-18
Abstract
No abstract record available.
Inventors
- 👤 Hart Edward
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 09:37
CPC Classifications
H; H02; H02K; H02K5/00; H02K5/04; H02K5/12; H02K5/128
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1269909A
Cited
US1675419A
Cited
DE594794C
Cited
US1875207A
Cited
US2023259A
Cited
US2246777A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-02-01 | 1952-08-02 | 1953-02-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-02-01 | 1956-08-02 | 1957-02-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-02-01 | 1960-08-02 | 1961-02-01 | $7700.00 | Window Closed / Lapsed |