US2623919A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Prechargeable spring assembly for high-voltage bushings
Assignee: General Electric Co
•
Filing: 1949-04-23
•
Granted: 1952-12-30
•
Expires: 1969-04-23
Abstract
No abstract record available.
Inventors
- 👤 Benjamin N Bowers
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 15:09
CPC Classifications
H; H01; H01B; H01B17/00; H01B17/34
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1572402A
Cited
US1988151A
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US2135321A
Cited
US2117697A
Cited
US2228089A
Cited
US2292031A
Cited
US2395426A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-12-30 | 1956-06-30 | 1956-12-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-12-30 | 1960-06-30 | 1960-12-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-12-30 | 1964-06-30 | 1964-12-30 | $7700.00 | Window Closed / Lapsed |