US2590265A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Control and protection of electric power system
Assignee: Westinghouse Electric Corp
•
Filing: 1950-08-12
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Granted: 1952-03-25
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Expires: 1970-08-12
Abstract
No abstract record available.
Inventors
- 👤 Jr John D Miner
- 👤 Bascum O Austin
- 👤 Ralph D Jessee
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:22
CPC Classifications
H; H02; H02J; H02J7/00; H02J7/14
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2483117A
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 |