US3102245A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrical transformer
Assignee: CALEDONIA ELECTRONICS AND TRANSFORMER CORP
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Filing: 1959-08-03
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Granted: 1963-08-27
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Expires: 1979-08-03
Abstract
No abstract record available.
Inventors
- 👤 Jr Harry W Lawson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 01:53
CPC Classifications
H; H01; H01F; H01F27/00; H01F27/28; H01F27/2823
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) | 1966-08-26 | 1967-02-25 | 1967-08-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-08-26 | 1971-02-25 | 1971-08-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-08-26 | 1975-02-25 | 1975-08-27 | $7700.00 | Window Closed / Lapsed |