US3342882A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Allylic rearrangement of dichlorobutenes
Assignee: TE Connectivity Germany GmbH
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Filing: 1964-05-22
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Granted: 1967-09-19
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Expires: 1984-05-22
Abstract
No abstract record available.
Inventors
- 👤 Costain Winston
- 👤 Terry Bernard William Hugh
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 04:38
CPC Classifications
C; C07; C07C; C07C17/00; C07C17/35; C07C17/358
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
65 words
A PROCESS FOR THE ISOMERISATION OF DICHLOROBUTENE SELECTED FROM THE GROUP CONSISTING OF 1,4-DICHLOROBUTENE2,3,4-DICHLOROBUTENE-1 AND THEIR MIXTURES WHEREIN SAID DICHLOROBUTENE IS CONTACTED WITH AN AQUEOUS SOLUTION OF AN ALKALI METAL HALIDE OR AN AMMONIUM HALIDE OR CUPRIC HALIDE CONTAINING A CUPROUS SALT SELECTED FROM THE GROUP CONSISTING OF CUPROUS CHLORIDE AND CUPROUS BROMIDE, THE SOLUTION BEING MAINTAINED AT A PH VALUE FROM 3 TO 7.3.
Claim 2
Dependent Claim
65 words
A PROCESS FOR THE ISOMERISATION OF DICHLOROBUTENE SELECTED FROM THE GROUP CONSISTING OF 1,4-DICHLOROBUTENE2,3,4-DICHLOROBUTENE-1 AND THEIR MIXTURES WHEREIN SAID DICHLOROBUTENE IS CONTACTED WITH AN AQUEOUS SOLUTION OF AN ALKALI METAL HALIDE OR AN AMMONIUM HALIDE OR CUPRIC HALIDE CONTAINING A CUPROUS SALT SELECTED FROM THE GROUP CONSISTING OF CUPROUS CHLORIDE AND CUPROUS BROMIDE, THE SOLUTION BEING MAINTAINED AT A PH VALUE FROM 3 TO 7.3.
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) | 1970-09-18 | 1971-03-20 | 1971-09-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-09-18 | 1975-03-20 | 1975-09-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-09-18 | 1979-03-20 | 1979-09-19 | $7700.00 | Window Closed / Lapsed |