US3206516A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for the production of 1, 4-dichloro hydrocarbons
Assignee: Bayer AG
•
Filing: 1962-11-19
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Granted: 1965-09-14
•
Expires: 1982-11-19
Abstract
No abstract record available.
Inventors
- 👤 Ziegenbein Willi
- 👤 Hornung Karl-Heinz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 21:35
CPC Classifications
C; C07; C07C; C07C17/00; C07C17/093
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
46 words
A PROCESS FOR PRODUCING 1,4-DICHLOROHYDROCARBONS COMPRISING ADMIXING (1) HYDROGENATED FURANE, WITH (2) THE REACTION PRODUCT OF INORGANIC ACID CHLORIDE AND A N,N-DIALKYL-SUBSTITUTED FORMAMIDE, THE ALKYL GROUPS OF WHICH CONTAIN NOT MORE THAN 5 CARBON ATOMS; HEATING THE MIXTURE TO ABOUT 40-150*C. AND RECOVERING THE RESULTING PRODUCT.
Claim 2
Dependent Claim
46 words
A PROCESS FOR PRODUCING 1,4-DICHLOROHYDROCARBONS COMPRISING ADMIXING (1) HYDROGENATED FURANE, WITH (2) THE REACTION PRODUCT OF INORGANIC ACID CHLORIDE AND A N,N-DIALKYL-SUBSTITUTED FORMAMIDE, THE ALKYL GROUPS OF WHICH CONTAIN NOT MORE THAN 5 CARBON ATOMS; HEATING THE MIXTURE TO ABOUT 40-150*C. AND RECOVERING THE RESULTING PRODUCT.
References Cited (Backward Citations)
DE857352C
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-09-13 | 1969-03-15 | 1969-09-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-09-13 | 1973-03-15 | 1973-09-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-09-13 | 1977-03-15 | 1977-09-14 | $7700.00 | Window Closed / Lapsed |