US3513275A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Circuit breaker with improved current path and contact means
Assignee: Westinghouse Electric Corp
•
Filing: 1968-10-04
•
Granted: 1970-05-19
•
Expires: 1988-10-04
Abstract
No abstract record available.
Inventors
- 👤 Albert R Cellerini
- 👤 Louis N Ricci
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 05:24
CPC Classifications
H; H01; H01H; H01H9/00; H01H9/30; H01H9/38; H01H9/383; H01H73/00; H01H73/02; H01H73/18; H01H1/00; H01H1/12; H01H1/14; H01H1/22; H01H1/221; H01H1/226
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1837812A
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US1935428A
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US2000442A
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US2214471A
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US2227160A
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US2571933A
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US2664479A
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US2871320A
Cited
US3141081A
Cited
US3061702A
Cited
US3218428A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-05-18 | 1973-11-17 | 1974-05-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-05-18 | 1977-11-17 | 1978-05-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-05-18 | 1981-11-17 | 1982-05-19 | $7700.00 | Window Closed / Lapsed |