US3492534A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fuse spark gap device for protection against line transient voltages
Assignee: General Electric Co
•
Filing: 1967-10-31
•
Granted: 1970-01-27
•
Expires: 1987-10-31
Abstract
No abstract record available.
Inventors
- 👤 Norman Szeremy
- 👤 Walter Katuschenko
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 18:27
CPC Classifications
H; H01; H01H; H01H85/00; H01H85/02; H01H85/44; H01H85/04; H01H85/041; H01H85/046
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2299184A
Cited
US2365595A
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US3045143A
Cited
US3184634A
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US3366831A
Cited
US3316467A
Cited
US3382402A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-01-26 | 1973-07-28 | 1974-01-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-01-26 | 1977-07-28 | 1978-01-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-01-26 | 1981-07-28 | 1982-01-27 | $7700.00 | Window Closed / Lapsed |