US3430108A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for the manufacture of tantalum powder for condenser purposes
Assignee: BASF Schweiz AG
•
Filing: 1966-03-29
•
Granted: 1969-02-25
•
Expires: 1986-03-29
Abstract
No abstract record available.
Inventors
- 👤 Gustay Daendliker
- 👤 Heini Fuerer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 23:13
CPC Classifications
H; H01; H01G; H01G9/00; H01G9/004; H01G9/04; H01G9/042; B; B22; B22F; B22F9/00; B22F9/02; B22F9/023; B22F9/04; H01G9/048; H01G9/052; H01G9/0525
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
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) | 1972-02-25 | 1972-08-26 | 1973-02-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-02-25 | 1976-08-26 | 1977-02-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-02-25 | 1980-08-26 | 1981-02-25 | $7700.00 | Window Closed / Lapsed |