US3519453A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Clay products and method of producing same
Assignee: BASF Catalysts LLC
•
Filing: 1967-04-10
•
Granted: 1970-07-07
•
Expires: 1987-04-10
Abstract
No abstract record available.
Inventors
- 👤 Horton H Morris
- 👤 Kenneth L Turner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 21:27
CPC Classifications
D; D21; D21H; D21H19/00; D21H19/36; D21H19/38; D21H19/40; C; C04; C04B; C04B33/00; C04B33/22; D21H17/00; D21H17/63; D21H17/67; D21H17/68
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) | 1973-07-06 | 1974-01-05 | 1974-07-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-07-06 | 1978-01-05 | 1978-07-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-07-06 | 1982-01-05 | 1982-07-07 | $7700.00 | Window Closed / Lapsed |