US2832809A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dichloro derivatives of conjugated diene dimers and their preparation
Assignee: Millennium Petrochemicals Inc
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Filing: 1955-04-04
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Granted: 1958-04-29
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Expires: 1975-04-04
Abstract
No abstract record available.
Inventors
- 👤 Charles E Frank
- 👤 Irving L Mador
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 18:03
CPC Classifications
C; C07; C07C; C07C17/00; C07C17/26
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
46 words
A PROCESS WHICH COMPRISES REACTING A CONJUGATED DIENE IN THE PRESENCE OF A FREE RADICAL, CHLORIDE ANIONS AND A SOLUBILIZING SOLVENT FOR SAID DIENE WHEREBY TO PRODUCE A REACTION MIXTURE COMPRISING A PRODUCT CORRESPONDING TO ADDITION OF TWO CHLORINE ATOMS TO A DIMER OF SAID DIENE.
Claim 2
Dependent Claim
46 words
A PROCESS WHICH COMPRISES REACTING A CONJUGATED DIENE IN THE PRESENCE OF A FREE RADICAL, CHLORIDE ANIONS AND A SOLUBILIZING SOLVENT FOR SAID DIENE WHEREBY TO PRODUCE A REACTION MIXTURE COMPRISING A PRODUCT CORRESPONDING TO ADDITION OF TWO CHLORINE ATOMS TO A DIMER OF SAID DIENE.
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) | 1961-04-28 | 1961-10-28 | 1962-04-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-04-28 | 1965-10-28 | 1966-04-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-04-28 | 1969-10-28 | 1970-04-29 | $7700.00 | Window Closed / Lapsed |