US3144472A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Preparation of cyclopentadienyl vanadium tetracarbonyl compounds
Assignee: Ethyl Corp
•
Filing: 1961-12-11
•
Granted: 1964-08-11
•
Expires: 1981-12-11
Abstract
No abstract record available.
Inventors
- 👤 Robert P M Werner
- 👤 Manastyrskyj Switlana
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 19:27
CPC Classifications
C; C23; C23C; C23C16/00; C23C16/06; C23C16/16; C03; C03C; C03C17/00; C03C17/06; C03C17/09; C03C25/00; C03C25/10; C03C25/42; C03C25/46; C07; C07F; C07F17/00; C10; C10L; C10L1/00; C10L1/10; C10L1/14; C10L1/30; C03C2217/00; C03C2217/20; C03C2217/25; C03C2217/263; C03C2218/00; C03C2218/10; C03C2218/15
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
10 words
PROCESS FOR THE FORMATION OF ORGANOVANADIUM COMPREXES HAVING THE FORMULA
Claim 2
Dependent Claim
10 words
PROCESS FOR THE FORMATION OF ORGANOVANADIUM COMPREXES HAVING THE FORMULA
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) | 1967-08-11 | 1968-02-10 | 1968-08-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-08-11 | 1972-02-10 | 1972-08-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-08-11 | 1976-02-10 | 1976-08-11 | $7700.00 | Window Closed / Lapsed |