Patent US3302069A successfully refreshed from Google Patents.
US3302069A
Expired / Lapsed
US
⏱️ 0.0 years remaining
High voltage electric switchgear layout
Assignee: Merz and Mclellan Services Ltd
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Filing: 1965-06-21
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Granted: 1967-01-31
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Expires: 1985-06-21
Abstract
No abstract record available.
Inventors
- 👤 Wilcox Thomas Webster
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 11:03
CPC Classifications
H; H02; H02B; H02B7/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
93 words
A POLYPHASE SWITCHGEAR ASSEMBLY IN WHICH THE EQUIPMENT FOR EACH PHASE IS ACCOMMODATED IN A DIFFERENT ONE OF A NUMBER OF SPACES, WHICH WILL BE TERMED PHASE LAYERS, SITUATED ONE ABOVE THE OTHER AND SEPARATED FROM EACH OTHER BY SPACED HORIZONTAL PLANES, EACH PHASE OF THE ASSEMBLY INCLUDING A PAIR OF BUSBARS EXTENDING PARALLEL TO ONE ANOTHER IN THE SAME HORIZONTAL PLANE IN THE UPPER PART OF THE PHASE LAYER, A ROW, PARALLEL TO THE BUSBARS, OF CIRCUIT BREAKERS LOCATED IN THE SPACE BETWEEN VERTICAL PLANES CONTAINING THE BUSBARS, A PLURALITY OF CIR-
Claim 2
Dependent Claim
93 words
A POLYPHASE SWITCHGEAR ASSEMBLY IN WHICH THE EQUIPMENT FOR EACH PHASE IS ACCOMMODATED IN A DIFFERENT ONE OF A NUMBER OF SPACES, WHICH WILL BE TERMED PHASE LAYERS, SITUATED ONE ABOVE THE OTHER AND SEPARATED FROM EACH OTHER BY SPACED HORIZONTAL PLANES, EACH PHASE OF THE ASSEMBLY INCLUDING A PAIR OF BUSBARS EXTENDING PARALLEL TO ONE ANOTHER IN THE SAME HORIZONTAL PLANE IN THE UPPER PART OF THE PHASE LAYER, A ROW, PARALLEL TO THE BUSBARS, OF CIRCUIT BREAKERS LOCATED IN THE SPACE BETWEEN VERTICAL PLANES CONTAINING THE BUSBARS, A PLURALITY OF CIR-
References Cited (Backward Citations)
US2345033A
Cited
US3248611A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-01-30 | 1970-08-01 | 1971-01-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-01-30 | 1974-08-01 | 1975-01-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-01-30 | 1978-08-01 | 1979-01-31 | $7700.00 | Window Closed / Lapsed |