US3399221A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for preparing alkyl aluminum halides
Assignee: Montedison SpA
•
Filing: 1962-11-20
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Granted: 1968-08-27
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Expires: 1982-11-20
Abstract
No abstract record available.
Inventors
- 👤 Giuseppe Bertoni
- 👤 Giorgio Moretti
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 12:47
CPC Classifications
C; C07; C07F; C07F5/00; C07F5/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
35 words
A PROCESS FOR PREPARING DIALKYL ALUMINUM MONOHALIDES, WHICH COMPRISES REACTING, UNDER ANHYDROUS CONDITIONS, A DIALKYL ALUMINUM MONOHYDRIDE WITH FROM ABOUT THE STOICHIOMETRIC AMOUNT TO ABOUT 10% IN EXCESS OF THE STOICHIOMETRIC AMOUNT OF A HALOGEN.
Claim 2
Dependent Claim
35 words
A PROCESS FOR PREPARING DIALKYL ALUMINUM MONOHALIDES, WHICH COMPRISES REACTING, UNDER ANHYDROUS CONDITIONS, A DIALKYL ALUMINUM MONOHYDRIDE WITH FROM ABOUT THE STOICHIOMETRIC AMOUNT TO ABOUT 10% IN EXCESS OF THE STOICHIOMETRIC AMOUNT OF A HALOGEN.
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) | 1971-08-27 | 1972-02-26 | 1972-08-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-08-27 | 1976-02-26 | 1976-08-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-08-27 | 1980-02-26 | 1980-08-27 | $7700.00 | Window Closed / Lapsed |