Patent US3225071A successfully refreshed from Google Patents.
US3225071A
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US
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Arene group vib metal tricarbonyls and process for preparing same
Assignee: Ethyl Corp
•
Filing: 1963-11-27
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Granted: 1965-12-21
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Expires: 1983-11-27
Abstract
No abstract record available.
Inventors
- 👤 Whiting Mark Crosby
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 12:02
CPC Classifications
C; C07; C07F; C07F11/00; C10; C10L; C10L1/00; C10L1/10; C10L1/14; C10L1/30; C10L1/305; C23; C23C; C23C16/00; C23C16/06; C23C16/16
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
5 words
(PI-(TRICARBONYL CHROMIUM)PHENYL) ETHER OF CHOLESTEROL.
Claim 2
Dependent Claim
5 words
(PI-(TRICARBONYL CHROMIUM)PHENYL) ETHER OF CHOLESTEROL.
Claim 3
Dependent Claim
16 words
A PROCESS FOR THE PREPARATION OF A SUBSTITUTED ARENE GROUP VIB METAL TRICARBONYL HAVING THE FORMULA:
Claim 4
Dependent Claim
16 words
A PROCESS FOR THE PREPARATION OF A SUBSTITUTED ARENE GROUP VIB METAL TRICARBONYL HAVING THE FORMULA:
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-12-20 | 1969-06-21 | 1969-12-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-12-20 | 1973-06-21 | 1973-12-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-12-20 | 1977-06-21 | 1977-12-21 | $7700.00 | Window Closed / Lapsed |