Patent US2911424A successfully refreshed from Google Patents.
US2911424A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Titanium and zirconium organic compounds and process of preparation
Assignee: NL Industries Inc
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Filing: 1956-06-01
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Granted: 1959-11-03
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Expires: 1976-06-01
Abstract
No abstract record available.
Inventors
- 👤 Kaufman Daniel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 05:38
CPC Classifications
C; C07; C07F; C07F7/00; C07F7/28
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
50 words
A METAL ORGANIC COMPOUND CONSISTING ESSENTIALLY OF ONE CYCLOPENTADIENYLENE GROUP AND TWO HALOGEN DIRECTLY ATTACHED TO A METAL ATOM SELECTED FROM THE GROUP CONSISTING OF TITANIUM AND ZIRCONIUM, SAID METAL BEING PRESENT IN THE TETRAVALENT STATE AND SAID HALOGEN SELECTED FROM THE GROUP CONSISTING OF FLUORINE, CHLORINE, BROMINE OR IODINE
Claim 2
Dependent Claim
50 words
A METAL ORGANIC COMPOUND CONSISTING ESSENTIALLY OF ONE CYCLOPENTADIENYLENE GROUP AND TWO HALOGEN DIRECTLY ATTACHED TO A METAL ATOM SELECTED FROM THE GROUP CONSISTING OF TITANIUM AND ZIRCONIUM, SAID METAL BEING PRESENT IN THE TETRAVALENT STATE AND SAID HALOGEN SELECTED FROM THE GROUP CONSISTING OF FLUORINE, CHLORINE, BROMINE OR IODINE
Claim 3
Independent Claim
75 words
A METHOD FOR THE PREPARATION OF A METAL ORGANIC COMPOUND WHICH COMPRISES OXIDIZING A COMPOUND SELECTED FROM THE GROUP CONSISTING OF CYCLOPENTADIENYL HALOCYCLOPENTENYL) METAL DIHALIDE AND CYCLOPENTADIENYL (TETRAHALOCYCLOPENTANYL) METAL DIHALIDE, SAID METAL BEING SELECTED FROM THE GROUP CONSISTING OF TITANIM AND ZIRCONIUM, THE HALO PORTION OF SAID COMPOUNDS BEING SELECTED FROM THE GROUP CONSISTING OF FLUORO, CHLORO, BROMO AND IODO AND SAID HALIDE BEING SELECTED FROM THE GROUP CONSISTING OF FLUORIDE, CHLORIDE, BROMIDE AND IODIDE.
Claim 4
Independent Claim
75 words
A METHOD FOR THE PREPARATION OF A METAL ORGANIC COMPOUND WHICH COMPRISES OXIDIZING A COMPOUND SELECTED FROM THE GROUP CONSISTING OF CYCLOPENTADIENYL HALOCYCLOPENTENYL) METAL DIHALIDE AND CYCLOPENTADIENYL (TETRAHALOCYCLOPENTANYL) METAL DIHALIDE, SAID METAL BEING SELECTED FROM THE GROUP CONSISTING OF TITANIM AND ZIRCONIUM, THE HALO PORTION OF SAID COMPOUNDS BEING SELECTED FROM THE GROUP CONSISTING OF FLUORO, CHLORO, BROMO AND IODO AND SAID HALIDE BEING SELECTED FROM THE GROUP CONSISTING OF FLUORIDE, CHLORIDE, BROMIDE AND IODIDE.
References Cited (Backward Citations)
FR1080357A
Cited
FR1108869A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-11-02 | 1963-05-04 | 1963-11-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-11-02 | 1967-05-04 | 1967-11-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-11-02 | 1971-05-04 | 1971-11-03 | $7700.00 | Window Closed / Lapsed |