Patent US2896123A successfully refreshed from Google Patents.
US2896123A
Expired / Lapsed
US
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Spark producing apparatus including saturable core transformer
Assignee: GEN LAB ASSOCIATES Inc
•
Filing: 1953-11-23
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Granted: 1959-07-21
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Expires: 1973-11-23
Abstract
No abstract record available.
Inventors
- 👤 John V Mcnulty
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 10:56
CPC Classifications
F; F02; F02P; F02P15/00; F02P15/001; F02P15/003
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1501485A
Cited
US1557201A
Cited
US1598486A
Cited
US2392192A
Cited
US2589164A
Cited
US2651005A
Cited
US2737612A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-07-20 | 1963-01-19 | 1963-07-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-07-20 | 1967-01-19 | 1967-07-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-07-20 | 1971-01-19 | 1971-07-21 | $7700.00 | Window Closed / Lapsed |