US2615775A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Outdoor metal-clad switchgear
Assignee: Westinghouse Electric Corp
•
Filing: 1947-10-30
•
Granted: 1952-10-28
•
Expires: 1967-10-30
Abstract
No abstract record available.
Inventors
- 👤 Glen L Claybourn
- 👤 Jr Paul Kocsis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 01:05
CPC Classifications
H; H02; H02B; H02B1/00; H02B1/26; H02B1/30; H02B1/308; H02B1/50
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US782135A
Cited
US1121422A
Cited
US1450180A
Cited
US1506442A
Cited
US2072383A
Cited
US2058263A
Cited
US2196399A
Cited
US2279945A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-10-28 | 1956-04-28 | 1956-10-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-10-28 | 1960-04-28 | 1960-10-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-10-28 | 1964-04-28 | 1964-10-28 | $7700.00 | Window Closed / Lapsed |