US3383446A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of producing electrical bushings
Assignee: BASF Schweiz AG
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Filing: 1965-09-10
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Granted: 1968-05-14
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Expires: 1985-09-10
Abstract
No abstract record available.
Inventors
- 👤 Brennecke Hermann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 19:13
CPC Classifications
B; B29; B29C; B29C70/00; B29C70/58; B29C70/62; B29C39/00; B29C39/02; B29C39/10; B29C70/68; B29C70/70; B29C70/72; H; H01; H01B; H01B17/00; H01B17/26; H01B17/28; H01B3/00; H01B3/18; H01B3/30; H01B3/40
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) | 1971-05-14 | 1971-11-13 | 1972-05-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-05-14 | 1975-11-13 | 1976-05-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-05-14 | 1979-11-13 | 1980-05-14 | $7700.00 | Window Closed / Lapsed |