US3506594A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Microspherical zeolitic molecular sieve composite catalyst and preparation thereof
Assignee: BASF Catalysts LLC
•
Filing: 1968-06-20
•
Granted: 1970-04-14
•
Expires: 1988-06-20
Abstract
No abstract record available.
Inventors
- 👤 Walter L Haden Jr
- 👤 Frank J Dzierzanowski
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 16:52
CPC Classifications
B; B01; B01J; B01J29/00; B01J29/04; B01J29/06; B01J29/08; C; C10; C10G; C10G11/00; C10G11/02; C10G11/04; C10G11/05; Y; Y10; Y10S; Y10S423/00; Y10S423/21
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) | 1973-04-13 | 1973-10-13 | 1974-04-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-04-13 | 1977-10-13 | 1978-04-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-04-13 | 1981-10-13 | 1982-04-14 | $7700.00 | Window Closed / Lapsed |