US3414525A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Catalyst manufacture
Assignee: Universal Oil Products Co
•
Filing: 1966-03-16
•
Granted: 1968-12-03
•
Expires: 1986-03-16
Abstract
No abstract record available.
Inventors
- 👤 Michalko Edward
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 21:27
CPC Classifications
C; C10; C10G; C10G11/00; C10G11/02; C10G11/04; C10G11/05; B; B01; B01J; B01J21/00; B01J21/12; B01J29/00; B01J29/04; B01J29/06; B01J29/08; B01J29/18; C01; C01B; C01B33/00; C01B33/113
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US2777822A
Cited
US2844523A
Cited
US3131156A
Cited
US3169931A
Cited
US3183194A
Cited
US3301994A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-12-03 | 1972-06-03 | 1972-12-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-12-03 | 1976-06-03 | 1976-12-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-12-03 | 1980-06-03 | 1980-12-03 | $7700.00 | Window Closed / Lapsed |