US2748333A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Induction motors
Assignee: Individual
•
Filing: 1952-04-05
•
Granted: 1956-05-29
•
Expires: 1972-04-05
Abstract
No abstract record available.
Inventors
- 👤 Lee Royal
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 23:16
CPC Classifications
H; H02; H02K; H02K17/00; H02K17/02; H02K17/30; Y; Y10; Y10S; Y10S251/00; Y10S251/901
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US991626A
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US984582A
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US1049703A
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US1079332A
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US1190243A
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US1031802A
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US1174654A
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US1134776A
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US1156364A
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US1527332A
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US1743818A
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US1767146A
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US1694061A
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US1823337A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-05-29 | 1959-11-28 | 1960-05-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-05-29 | 1963-11-28 | 1964-05-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-05-29 | 1967-11-28 | 1968-05-29 | $7700.00 | Window Closed / Lapsed |