US3405186A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for preparing dicyclopentadienyl magnesium
Assignee: Commonwealth Scientific and Industrial Research Organisation
•
Filing: 1965-06-16
•
Granted: 1968-10-08
•
Expires: 1985-06-16
Abstract
No abstract record available.
Inventors
- 👤 Ronald L Davey
- 👤 Kenneth L Piggott
- 👤 Allen F Reid
- 👤 Peter C Wailes
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 02:01
CPC Classifications
B; B01; B01J; B01J10/00; B01J10/005; C; C07; C07F; C07F3/00; C07F3/02
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) | 1971-10-08 | 1972-04-08 | 1972-10-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-10-08 | 1976-04-08 | 1976-10-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-10-08 | 1980-04-08 | 1980-10-08 | $7700.00 | Window Closed / Lapsed |