US3489778A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydrogenation of unsaturated aliphatic compounds
Assignee: Lever Brothers Co
•
Filing: 1967-04-04
•
Granted: 1970-01-13
•
Expires: 1987-04-04
Abstract
No abstract record available.
Inventors
- 👤 Leendert Pieter Van T Hof
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:37
CPC Classifications
C; C11; C11C; C11C3/00; C11C3/12; C11C3/126; B; B01; B01J; B01J27/00; B01J27/06; C07; C07C; C07C5/00; C07C5/02; C07C5/03; C07C2527/00; C07C2527/06; C07C2527/128; C07C2527/13; C07C2527/135
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1097456A
Cited
US3210296A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-01-12 | 1973-07-14 | 1974-01-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-01-12 | 1977-07-14 | 1978-01-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-01-12 | 1981-07-14 | 1982-01-13 | $7700.00 | Window Closed / Lapsed |