US2980566A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for the production of highvoltage insulation, and insulation produced by this method
Assignee: BBC Brown Boveri AG Germany
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Filing: 1956-05-14
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Granted: 1961-04-18
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Expires: 1976-05-14
Abstract
No abstract record available.
Inventors
- 👤 Wohlfahrt Otto
- 👤 Michel Kurt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 12:56
CPC Classifications
H; H02; H02K; H02K3/00; H02K3/32; H02K3/34; H01; H01B; H01B3/00; H01B3/002; H01B3/02; H01B3/04; Y; Y10; Y10T; Y10T156/00; Y10T156/10; Y10T156/1089; Y10T156/1092
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US543964A
Cited
US548515A
Cited
US691871A
Cited
US2479417A
Cited
US2656290A
Cited
US2763315A
Cited
US2707204A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-04-17 | 1964-10-17 | 1965-04-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-04-17 | 1968-10-17 | 1969-04-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-04-17 | 1972-10-17 | 1973-04-18 | $7700.00 | Window Closed / Lapsed |