Patent US3458276A successfully refreshed from Google Patents.
US3458276A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Waste gas oxidation process using catalyst comprising variable density activator
Assignee: Universal Oil Products Co
•
Filing: 1967-12-11
•
Granted: 1969-07-29
•
Expires: 1987-12-11
Abstract
No abstract record available.
Inventors
- 👤 Herman S Bloch
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 17:43
CPC Classifications
B; B01; B01J; B01J8/00; B01J8/02; B01D; B01D53/00; B01D53/34; B01D53/74; B01D53/86; B01D53/92; B01D53/94; B01D53/944; B01J37/00; B01J37/0009; B01J37/0018; B01J37/04; B01J2208/00; B01J2208/00008; B01J2208/00017; B01J2208/00389; B01J2208/00398; B01J2208/0053; B01J2208/00548; B01J2208/00557; B01J2208/00592
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
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) | 1972-07-28 | 1973-01-27 | 1973-07-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-07-28 | 1977-01-27 | 1977-07-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-07-28 | 1981-01-27 | 1981-07-29 | $7700.00 | Window Closed / Lapsed |