Patent US3259642A successfully refreshed from Google Patents.
US3259642A
Expired / Lapsed
US
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Process for the production of metalcyclopentadienyl compounds
Assignee: Studiengesellschaft Kohle gGmbH
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Filing: 1962-10-16
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Granted: 1966-07-05
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Expires: 1982-10-16
Abstract
No abstract record available.
Inventors
- 👤 Gunther O Schenck
- 👤 Gustorf Ernst Koerner Von
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 16:47
CPC Classifications
C; C07; C07F; C07F17/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
79 words
PROCESS FOR THE PRODUCTION OF A METAL CYCLO-PENTADIENYL COMPOUND WHICH COMPRISES REACTING THALLIUM CYCLOPENTADIENYL WITH A MEMBER SELECTED FROM THE GROUP CONSISTING OF METAL HALIDES AND ARYL SUBSTITUTED METAL HALIDES, WHEREIN SAID METAL IS LESS ELECTRO-POSITIVE THAT THALLIUM AND IS A MEMBER SELECTED FROM THE GROUP CONSISTING OF GROUPS IB, IIB, IIIB, IVA, IVB, VA, VB, VIA, VIB, VIIA, AND VIII METALS, SAID GROUP MEMBER CONTAINING WATER A CRYSTALLIZATION, AND RECOVERING THE METAL CYCLOPENTADIENYL COMPOUND FORMED IN THE REACTION.
Claim 2
Dependent Claim
79 words
PROCESS FOR THE PRODUCTION OF A METAL CYCLO-PENTADIENYL COMPOUND WHICH COMPRISES REACTING THALLIUM CYCLOPENTADIENYL WITH A MEMBER SELECTED FROM THE GROUP CONSISTING OF METAL HALIDES AND ARYL SUBSTITUTED METAL HALIDES, WHEREIN SAID METAL IS LESS ELECTRO-POSITIVE THAT THALLIUM AND IS A MEMBER SELECTED FROM THE GROUP CONSISTING OF GROUPS IB, IIB, IIIB, IVA, IVB, VA, VB, VIA, VIB, VIIA, AND VIII METALS, SAID GROUP MEMBER CONTAINING WATER A CRYSTALLIZATION, AND RECOVERING THE METAL CYCLOPENTADIENYL COMPOUND FORMED IN THE REACTION.
References Cited (Backward Citations)
US2987534A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-07-04 | 1970-01-03 | 1970-07-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-07-04 | 1974-01-03 | 1974-07-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-07-04 | 1978-01-03 | 1978-07-05 | $7700.00 | Window Closed / Lapsed |