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Patent US2906910A successfully refreshed from Google Patents.
US2906910A
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US
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Spark gap device
Assignee: Westinghouse Electric Corp
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Filing: 1958-10-30
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Granted: 1959-09-29
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Expires: 1978-10-30
Abstract
No abstract record available.
Inventors
- 👤 Jr Tom L Dyer
- 👤 Robert T Innis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 13:20
CPC Classifications
H; H01; H01T; H01T1/00; H01T1/02; H01T1/04; H01T1/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1191571A
Cited
US2677032A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-09-28 | 1963-03-30 | 1963-09-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-09-28 | 1967-03-30 | 1967-09-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-09-28 | 1971-03-30 | 1971-09-29 | $7700.00 | Window Closed / Lapsed |