US3364273A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cyclooligomerization using nickel (0) polydentate ligand
Assignee: Columbian Carbon Co
•
Filing: 1966-02-23
•
Granted: 1968-01-16
•
Expires: 1986-02-23
Abstract
No abstract record available.
Inventors
- 👤 Reginald F Clark
- 👤 Charles D Storrs
- 👤 George B Barnes
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 18:18
CPC Classifications
C; C07; C07F; C07F9/00; B; B01; B01J; B01J31/00; B01J31/16; B01J31/165; B01J31/1658; B01J31/18; B01J31/1845; B01J31/185; C07C; C07C2/00; C07C2/02; C07C2/42; C07C2/44; C07C2/46; C07C2/465; B01J2231/00; B01J2231/30; B01J2231/32; B01J2231/324; B01J2531/00; B01J2531/80; B01J2531/84; B01J2531/847; C07C2531/00; C07C2531/02; C07C2531/06; C07C2531/12; C07C2531/14; C07C2531/16; C07C2531/22
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US2504016A
Cited
US2991317A
Cited
US2964575A
Cited
US2972640A
Cited
US3004081A
Cited
US3219714A
Cited
US3152158A
Cited
US3219716A
Cited
US3187062A
Cited
US3249641A
Cited
US3277099A
Cited
US3223741A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-01-15 | 1971-07-17 | 1972-01-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-01-15 | 1975-07-17 | 1976-01-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-01-15 | 1979-07-17 | 1980-01-16 | $7700.00 | Window Closed / Lapsed |