Patent US3223651A successfully refreshed from Google Patents.
US3223651A
Expired / Lapsed
US
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Co-crystallized vanadium-titanium-aluminum halide catalyst system
Assignee: ExxonMobil Technology and Engineering Co
•
Filing: 1963-02-20
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Granted: 1965-12-14
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Expires: 1983-02-20
Abstract
No abstract record available.
Inventors
- 👤 Erik G M Tornqvist
- 👤 Perry A Argabright
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 14:50
CPC Classifications
B; B01; B01J; B01J27/00; B01J27/06; C; C08; C08F; C08F10/00; Y; Y10; Y10S; Y10S526/00; Y10S526/906
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
17 words
AN IMPROVED CATALYST SYSTEM COMPRISING A COCRYSTALLIZED TITANIUM, VANADIUM AND ALUMINUM COMPONENT CORRESPONDING SUBSTANTIALLY TO THE FORMULA
Claim 2
Dependent Claim
17 words
AN IMPROVED CATALYST SYSTEM COMPRISING A COCRYSTALLIZED TITANIUM, VANADIUM AND ALUMINUM COMPONENT CORRESPONDING SUBSTANTIALLY TO THE FORMULA
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-12-13 | 1969-06-14 | 1969-12-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-12-13 | 1973-06-14 | 1973-12-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-12-13 | 1977-06-14 | 1977-12-14 | $7700.00 | Window Closed / Lapsed |