Patent US3287433A successfully refreshed from Google Patents.
US3287433A
Expired / Lapsed
US
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Process for the separation of mixtures of tertiary butyl chloride and 3, 3-dimethylbutene-1
Assignee: Sinclair Research Inc
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Filing: 1964-01-15
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Granted: 1966-11-22
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Expires: 1984-01-15
Abstract
No abstract record available.
Inventors
- 👤 Jr Emmett H Burk
- 👤 Byron W Turnquest
- 👤 Calvin J Bragg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 10:34
CPC Classifications
C; C07; C07C; C07C7/00; C07C7/148; Y; Y10; Y10S; Y10S585/00; Y10S585/929; Y10S585/93; Y10S585/935
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
54 words
A METHOD FOR THE SEPARATION OF A MIXTURE CONSISTING ESSENTIALLY OF TERTIARY BUTYL CHLORIDE AND 3,3-DIMETHYLBUTENE-1 WHICH COMPRISES CONTACTING SAID MIXTURE IN THE VAPOR PHASE WITH ELEMENTAL IRON AT A TEMPERATURE OF ABOUT 500 TO 900*F. TO CONVERT THE TERTIARY BUTYL CHLORIDE TO ISOBUTYLENE AND HYDROGEN CHLORIDE AND REMOVING SAID HYDROGEN CHLORIDE AND ISOBUTYLENE.
Claim 2
Independent Claim
54 words
A METHOD FOR THE SEPARATION OF A MIXTURE CONSISTING ESSENTIALLY OF TERTIARY BUTYL CHLORIDE AND 3,3-DIMETHYLBUTENE-1 WHICH COMPRISES CONTACTING SAID MIXTURE IN THE VAPOR PHASE WITH ELEMENTAL IRON AT A TEMPERATURE OF ABOUT 500 TO 900*F. TO CONVERT THE TERTIARY BUTYL CHLORIDE TO ISOBUTYLENE AND HYDROGEN CHLORIDE AND REMOVING SAID HYDROGEN CHLORIDE AND ISOBUTYLENE.
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) | 1969-11-21 | 1970-05-23 | 1970-11-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-11-21 | 1974-05-23 | 1974-11-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-11-21 | 1978-05-23 | 1978-11-22 | $7700.00 | Window Closed / Lapsed |