US2583804A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Motor winding
Assignee: AO Smith Corp
•
Filing: 1948-01-21
•
Granted: 1952-01-29
•
Expires: 1968-01-21
Abstract
No abstract record available.
Inventors
- 👤 Orrin E Andrus
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 05:08
CPC Classifications
H; H02; H02K; H02K3/00; H02K3/44
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1261193A
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US1277765A
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US1822261A
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US1792526A
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US1925892A
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GB451776A
Cited
US2206672A
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US2286952A
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US2291793A
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US2280855A
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US2435231A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-01-28 | 1955-07-30 | 1956-01-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-01-28 | 1959-07-30 | 1960-01-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-01-28 | 1963-07-30 | 1964-01-29 | $7700.00 | Window Closed / Lapsed |