Patent US3205037A successfully refreshed from Google Patents.
US3205037A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for the preparation of a crystalline zeolite
Assignee: WR Grace and Co
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Filing: 1962-06-14
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Granted: 1965-09-07
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Expires: 1982-06-14
Abstract
No abstract record available.
Inventors
- 👤 Philip K Maher
- 👤 Eugene J Nealon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 19:46
CPC Classifications
C; C01; C01B; C01B33/00; C01B33/20; C01B33/26; C01B33/28; C01B33/2807; C01B33/2815
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
12 words
A PROCESS FOR PREPARING A ZEOLITE COMPOSITION HAVING THE APPROXIMATE GROSS COMPOSITION
Claim 2
Dependent Claim
12 words
A PROCESS FOR PREPARING A ZEOLITE COMPOSITION HAVING THE APPROXIMATE GROSS COMPOSITION
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) | 1968-09-06 | 1969-03-08 | 1969-09-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-09-06 | 1973-03-08 | 1973-09-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-09-06 | 1977-03-08 | 1977-09-07 | $7700.00 | Window Closed / Lapsed |