Patent US2179334A successfully refreshed from Google Patents.
US2179334A
Expired / Lapsed
US
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Magnet wire insulating machinery
Assignee: Westinghouse Electric Corp
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Filing: 1936-02-20
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Granted: 1939-11-07
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Expires: 1956-02-20
Abstract
No abstract record available.
Inventors
- 👤 John J Keyes
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 13:49
CPC Classifications
H; H01; H01B; H01B13/00; H01B13/06; H01B13/08; H01B13/0858; H01B13/0866; B; B65; B65H; B65H59/00; B65H59/02; B65H59/04; B65H59/043; B65H59/046
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1942-11-06 | 1943-05-08 | 1943-11-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1946-11-06 | 1947-05-08 | 1947-11-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1950-11-06 | 1951-05-08 | 1951-11-07 | $7700.00 | Window Closed / Lapsed |