Patent US3239553A successfully refreshed from Google Patents.
US3239553A
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Process for the production of gammahalonitriles by the 1, 2-addition of alpha-halonitriles to olefines
Assignee: Shell USA Inc
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Filing: 1963-08-12
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Granted: 1966-03-08
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Expires: 1983-08-12
Abstract
No abstract record available.
Inventors
- 👤 Frederick F Rust
- 👤 Harvey S Klein
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 14:36
CPC Classifications
C; C07; C07C; C07C317/00; C07C317/44; C07C17/00; C07C17/26; C07C17/272; C07C17/275; C07C21/00; C07C21/02; C07C21/19; C07C22/00; C07C22/02; C07C255/00; C07C317/02; C07C317/04; C07C317/08; C07C317/14; C07C45/00; C07C45/61; C07C45/67; C07C45/68; C07C45/69; C07C47/00; C07C47/02; C07C47/14; C07C47/20; C07C47/24; C07C49/00; C07C49/04; C07C49/16; C07C49/20; C07C49/227; C07C2601/00; C07C2601/12; C07C2601/16
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
85 words
THE PROCESS FOR THE PRODUCTION OF 2-HALONITRILES BY THE 1,2-ADDITION OF A-MONO- TO A,A,A-TRIHALONITRILES HAVING FROM 1 TO 3 HALOGEN SUBSTITUENTS OF ATOMIC NUMBER FROM 17 TO 53 AND FROM 2 TO 10 CARBON ATOMS TO AN OLEFINIC COMPOUND HAVING FROM 2 TO 20 CARBON ATOMS AND FROM 1 TO 3 ISOLATED CARBON-CARBON DOUBLE BONDS IN THE PRESENCE OF FROM ABOUT 0.005 MOLE TO ABOUT 0.5 MOLE PER MOLE OF LIMITING REACTANT OF AN IRON SALT, AT A TEMPERATURE FROM ABOUT 50*C. TO ABOUT 200*C.
Claim 2
Dependent Claim
85 words
THE PROCESS FOR THE PRODUCTION OF 2-HALONITRILES BY THE 1,2-ADDITION OF A-MONO- TO A,A,A-TRIHALONITRILES HAVING FROM 1 TO 3 HALOGEN SUBSTITUENTS OF ATOMIC NUMBER FROM 17 TO 53 AND FROM 2 TO 10 CARBON ATOMS TO AN OLEFINIC COMPOUND HAVING FROM 2 TO 20 CARBON ATOMS AND FROM 1 TO 3 ISOLATED CARBON-CARBON DOUBLE BONDS IN THE PRESENCE OF FROM ABOUT 0.005 MOLE TO ABOUT 0.5 MOLE PER MOLE OF LIMITING REACTANT OF AN IRON SALT, AT A TEMPERATURE FROM ABOUT 50*C. TO ABOUT 200*C.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-03-07 | 1969-09-06 | 1970-03-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-03-07 | 1973-09-06 | 1974-03-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-03-07 | 1977-09-06 | 1978-03-08 | $7700.00 | Window Closed / Lapsed |