Patent US2647247A successfully refreshed from Google Patents.
US2647247A
Expired / Lapsed
US
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Quick detachable connector for metal-enclosed switchgears
Assignee: Westinghouse Electric Corp
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Filing: 1950-10-27
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Granted: 1953-07-28
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Expires: 1970-10-27
Abstract
No abstract record available.
Inventors
- 👤 Wilbur C Fulton
- 👤 Roy S Tusing
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 07:55
CPC Classifications
H; H02; H02B; H02B11/00; H02B11/02; H02B11/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1275703A
Cited
US1696947A
Cited
US2029028A
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US2229504A
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US2388934A
Cited
US2417928A
Cited
US2502253A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-07-27 | 1957-01-26 | 1957-07-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-07-27 | 1961-01-26 | 1961-07-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-07-27 | 1965-01-26 | 1965-07-28 | $7700.00 | Window Closed / Lapsed |