Patent US2620769A successfully refreshed from Google Patents.
US2620769A
Expired / Lapsed
US
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Means for handling and varnishing electrical windings
Assignee: Blaw Knox Co
•
Filing: 1948-10-30
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Granted: 1952-12-09
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Expires: 1968-10-30
Abstract
No abstract record available.
Inventors
- 👤 Nathaniel B Ornitz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 22:25
CPC Classifications
H; H02; H02K; H02K15/00; H02K15/12
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US595808A
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US1314889A
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US856996A
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US877037A
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US1274830A
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US1689062A
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US2249521A
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US2334854A
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US2362653A
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US2469123A
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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) | 1955-12-09 | 1956-06-09 | 1956-12-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-12-09 | 1960-06-09 | 1960-12-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-12-09 | 1964-06-09 | 1964-12-09 | $7700.00 | Window Closed / Lapsed |