US3528615A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of reducing particle size of crystalline zeolites
Assignee: Mobil Oil AS
•
Filing: 1967-06-16
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Granted: 1970-09-15
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Expires: 1987-06-16
Abstract
No abstract record available.
Inventors
- 👤 George T Kokotailo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 05:42
CPC Classifications
B; B02; B02C; B02C19/00; B02C19/18; B02C19/186; B01; B01J; B01J20/00; B01J20/02; B01J20/10; B01J20/16; B01J20/18; B01J20/183
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US437990A
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US502181A
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US1718264A
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US1679857A
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US2460742A
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US2943982A
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US3399838A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-09-14 | 1974-03-16 | 1974-09-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-09-14 | 1978-03-16 | 1978-09-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-09-14 | 1982-03-16 | 1982-09-15 | $7700.00 | Window Closed / Lapsed |