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US3068435A
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Electromagnetic coils
Assignee: GTE Sylvania Inc
•
Filing: 1954-04-19
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Granted: 1962-12-11
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Expires: 1974-04-19
Abstract
No abstract record available.
Inventors
- 👤 Jr Chester H Oliver
- 👤 Zack Albert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 08:07
CPC Classifications
H; H01; H01F; H01F27/00; H01F27/28; H01F27/2847; H01F27/2852; H01F30/00; H01F30/06; H01F30/10
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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Cited
US263700A
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US605194A
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US787658A
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CH125759A
Cited
US1837678A
Cited
US2014524A
Cited
GB639591A
Cited
US2821685A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-12-10 | 1966-06-11 | 1966-12-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-12-10 | 1970-06-11 | 1970-12-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-12-10 | 1974-06-11 | 1974-12-11 | $7700.00 | Window Closed / Lapsed |