US2431474A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Composite insulating bushing
Assignee: BBC Brown Boveri AG Germany
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Filing: 1945-09-13
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Granted: 1947-11-25
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Expires: 1965-09-13
Abstract
No abstract record available.
Inventors
- 👤 Gaudenzi Arthur
- 👤 Kern Erwin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 12:23
CPC Classifications
H; H01; H01B; H01B17/00; H01B17/26; H01B17/30; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/49227; Y10T428/00; Y10T428/12; Y10T428/12014; Y10T428/12021
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1950-11-24 | 1951-05-26 | 1951-11-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-11-24 | 1955-05-26 | 1955-11-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-11-24 | 1959-05-26 | 1959-11-25 | $7700.00 | Window Closed / Lapsed |