US3177152A
Expired / Lapsed
US
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Method for the preparation of a molecular sieve-platinum catalyst
Assignee: ExxonMobil Technology and Engineering Co
•
Filing: 1962-08-31
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Granted: 1965-04-06
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Expires: 1982-08-31
Abstract
No abstract record available.
Inventors
- 👤 Kenneth K Kearby
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 04:39
CPC Classifications
B; B01; B01J; B01J29/00; B01J29/04; B01J29/06; B01J29/064; B01J29/068
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
CA620028A
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US2475155A
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US2967159A
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US2912300A
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US3013984A
Cited
US3013987A
Cited
US3086839A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-04-05 | 1968-10-05 | 1969-04-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-04-05 | 1972-10-05 | 1973-04-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-04-05 | 1976-10-05 | 1977-04-06 | $7700.00 | Window Closed / Lapsed |