Patent US2590522A successfully refreshed from Google Patents.
US2590522A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Bus duct plug in adapter
Assignee: Westinghouse Electric Corp
•
Filing: 1949-03-09
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Granted: 1952-03-25
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Expires: 1969-03-09
Abstract
No abstract record available.
Inventors
- 👤 Lloyd W Dyer
- 👤 Gerald J Freese
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 21:18
CPC Classifications
H; H02; H02G; H02G5/00; H02G5/06; H02G5/08
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2192587A
Cited
US2124269A
Cited
US2231056A
Cited
US2251403A
Cited
GB528717A
Cited
US2281221A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-03-25 | 1955-09-24 | 1956-03-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-03-25 | 1959-09-24 | 1960-03-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-03-25 | 1963-09-24 | 1964-03-25 | $7700.00 | Window Closed / Lapsed |