Patent US3477965A successfully refreshed from Google Patents.
US3477965A
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US
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Method of catalyst manufacture
Assignee: Universal Oil Products Co
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Filing: 1967-06-30
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Granted: 1969-11-11
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Expires: 1987-06-30
Abstract
No abstract record available.
Inventors
- 👤 Norman A Fishel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 23:45
CPC Classifications
C; C10; C10G; C10G47/00; C10G47/02; C10G47/10; C10G47/12; C10G47/16; B; B01; B01J; B01J27/00; B01J27/06; B01J27/128; B01J27/13; B01J29/00; B01J29/04; B01J29/06; B01J29/064; C10G11/00; C10G11/02; C10G11/04; C10G11/05
Claims Analysis
Total Claims: 0
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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) | 1972-11-10 | 1973-05-12 | 1973-11-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-11-10 | 1977-05-12 | 1977-11-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-11-10 | 1981-05-12 | 1981-11-11 | $7700.00 | Window Closed / Lapsed |