Patent DE656033C successfully refreshed from Google Patents.
Patent US3368982A successfully refreshed from Google Patents.
US3368982A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Nickel and nickel oxide catalysts on a nickel spinel base
Assignee: United Engineers and Constructors Inc
•
Filing: 1964-03-09
•
Granted: 1968-02-13
•
Expires: 1984-03-09
Abstract
No abstract record available.
Inventors
- 👤 Milbourne Charles Gordon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 21:50
CPC Classifications
C; C01; C01B; C01B3/00; C01B3/02; C01B3/32; C01B3/34; C01B3/38; C01B3/40; B; B01; B01J; B01J23/00; B01J23/005; B01J23/70; C01B3/46; B01J37/00; B01J37/02; B01J37/0201; C01B2203/00; C01B2203/10; C01B2203/1041; C01B2203/1047; C01B2203/1052; Y; Y02; Y02P; Y02P20/00; Y02P20/50; Y02P20/52; Y10; Y10S; Y10S502/00; Y10S502/524
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1943821A
Cited
US2592016A
Cited
US2606159A
Cited
US2946743A
Cited
US3207700A
Cited
US3186957A
Cited
GB914423A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-02-12 | 1971-08-14 | 1972-02-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-02-12 | 1975-08-14 | 1976-02-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-02-12 | 1979-08-14 | 1980-02-13 | $7700.00 | Window Closed / Lapsed |