US3306916A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for preparing vinylcyclopentadienyl manganese tricarbonyl
Assignee: Ethyl Corp
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Filing: 1965-05-03
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Granted: 1967-02-28
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Expires: 1985-05-03
Abstract
No abstract record available.
Inventors
- 👤 Kozikowski John
- 👤 Cais Michael
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 02:46
CPC Classifications
C; C23; C23C; C23C16/00; C23C16/06; C23C16/16; C03; C03C; C03C25/00; C03C25/10; C03C25/24; C03C25/38; C03C25/42; C03C25/46; C07; C07F; C07F13/00; C07F17/00; C08; C08F; C08F30/00; C08F30/04; C09; C09F; C09F9/00; C10; C10L; C10L1/00; C10L1/10; C10L1/14; C10L1/30; C10L1/305; C10M; C10M1/00; C10M1/08; C10M2227/00; C10M2227/08; C10M2227/081; C10M2227/082
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
29 words
PROCESS COMPRISING REACTING A (1-HYDROXYETHYL) CYCLOPENTADIENYL MANGANESE TRICARBONYL COMPOUND WITH A DEHYDRATION CATALYST, SAID PROCESS BEING CARRIED OUT AT ABOUT 170*C. AND IN THE PRESENCE OF A POLYMERIZATION INHIBITOR.
Claim 2
Dependent Claim
29 words
PROCESS COMPRISING REACTING A (1-HYDROXYETHYL) CYCLOPENTADIENYL MANGANESE TRICARBONYL COMPOUND WITH A DEHYDRATION CATALYST, SAID PROCESS BEING CARRIED OUT AT ABOUT 170*C. AND IN THE PRESENCE OF A POLYMERIZATION INHIBITOR.
References Cited (Backward Citations)
US2818417A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-02-27 | 1970-08-29 | 1971-02-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-02-27 | 1974-08-29 | 1975-02-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-02-27 | 1978-08-29 | 1979-02-28 | $7700.00 | Window Closed / Lapsed |