US3459299A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Talc beneficiation
Assignee: BASF Catalysts LLC
•
Filing: 1967-09-01
•
Granted: 1969-08-05
•
Expires: 1987-09-01
Abstract
No abstract record available.
Inventors
- 👤 Venancio Mercade
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 18:50
CPC Classifications
B; B03; B03D; B03D1/00; B03D1/001; B03D1/004; B03D1/01; B03D1/002; B03D1/008; B03D1/012; C; C01; C01B; C01B33/00; C01B33/20; C01B33/22; B03D2201/00; B03D2201/005; B03D2201/04; B03D2203/00; B03D2203/02; B03D2203/04
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) | 1972-08-04 | 1973-02-03 | 1973-08-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-08-04 | 1977-02-03 | 1977-08-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-08-04 | 1981-02-03 | 1981-08-05 | $7700.00 | Window Closed / Lapsed |