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US2866135A
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Lightning arresters
Assignee: McGraw Edison Co
•
Filing: 1954-12-15
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Granted: 1958-12-23
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Expires: 1974-12-15
Abstract
No abstract record available.
Inventors
- 👤 Francis V Cunningham
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 20:38
CPC Classifications
H; H01; H01T; H01T4/00; H01T4/08
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1213844A
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US1754158A
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US1590440A
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US2108465A
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US2018672A
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US2421644A
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US2490952A
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US2586354A
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US2668210A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-12-22 | 1962-06-23 | 1962-12-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-12-22 | 1966-06-23 | 1966-12-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-12-22 | 1970-06-23 | 1970-12-23 | $7700.00 | Window Closed / Lapsed |