US3437431A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Recovering palladium compounds by extraction with amines
Assignee: BASF SE
•
Filing: 1965-12-22
•
Granted: 1969-04-08
•
Expires: 1985-12-22
Abstract
No abstract record available.
Inventors
- 👤 Rolf Platz
- 👤 Heinz Nohe
- 👤 Dominik Schuler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 23:07
CPC Classifications
C; C01; C01G; C01G55/00; C01G55/001; C22; C22B; C22B3/00; C22B3/20; C22B3/26; C22B3/28; Y; Y02; Y02P; Y02P10/00; Y02P10/20
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) | 1972-04-07 | 1972-10-07 | 1973-04-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-04-07 | 1976-10-07 | 1977-04-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-04-07 | 1980-10-07 | 1981-04-08 | $7700.00 | Window Closed / Lapsed |