US3536740A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ii-allyl transition metal-anion compounds
Assignee: Studiengesellschaft Kohle gGmbH
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Filing: 1968-10-16
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Granted: 1970-10-27
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Expires: 1988-10-16
Abstract
No abstract record available.
Inventors
- 👤 Gunther Wilke
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 14:09
CPC Classifications
C; C08; C08F; C08F36/00; C08F36/02; C08F36/04; C07; C07F; C07F11/00; C07F15/00; C07F15/0006; C07F15/006; C07F15/0086; C07F15/02; C07F15/04; C07F15/06; C07F5/00; C07F7/00; C07F7/28; C07F9/00; C08F10/00; C07C; C07C2527/00; C07C2527/06; C07C2527/125; C07C2531/00; C07C2531/02; C07C2531/12; C07C2531/14; C07C2531/16; C07C2531/22; C08F4/00; C08F4/42; C08F4/44; C08F4/60; C08F4/619
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3080305A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-10-26 | 1974-04-27 | 1974-10-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-10-26 | 1978-04-27 | 1978-10-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-10-26 | 1982-04-27 | 1982-10-27 | $7700.00 | Window Closed / Lapsed |