US3469223A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cast bushing for connecting a high voltage and high current to electrical apparatus located in a metal casing or tank
Assignee: Westinghouse Electric Corp
•
Filing: 1968-06-26
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Granted: 1969-09-23
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Expires: 1988-06-26
Abstract
No abstract record available.
Inventors
- 👤 Merrill G Leonard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:18
CPC Classifications
H; H01; H01B; H01B17/00; H01B17/26; H01B17/30; H01B17/303; H01B17/306; H01F; H01F27/00; H01F27/02; H01F27/04; H01F27/40; H01F27/402; H01F27/404
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1490419A
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US2281073A
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US2782391A
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US3071672A
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US3244838A
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US3299235A
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US3345483A
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US3422392A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-09-22 | 1973-03-24 | 1973-09-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-09-22 | 1977-03-24 | 1977-09-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-09-22 | 1981-03-24 | 1981-09-23 | $7700.00 | Window Closed / Lapsed |