Patent US3470601A successfully refreshed from Google Patents.
Patent US3201854A successfully refreshed from Google Patents.
US3201854A
Expired / Lapsed
US
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Method of making a shielded transformer
Assignee: Gulton Industries Inc
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Filing: 1962-09-07
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Granted: 1965-08-24
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Expires: 1982-09-07
Abstract
No abstract record available.
Inventors
- 👤 Jay A Cox
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 18:54
CPC Classifications
H; H01; H01F; H01F19/00; H01F19/02; H01F29/00; H01F29/14; H01F29/143; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/4902; Y10T29/49071
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-08-23 | 1969-02-22 | 1969-08-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-08-23 | 1973-02-22 | 1973-08-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-08-23 | 1977-02-22 | 1977-08-24 | $7700.00 | Window Closed / Lapsed |