US2644015A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Alkaline hydrolysis of hexachlorobenzene
Assignee: Columbia Southern Chemical Corp
•
Filing: 1950-02-10
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Granted: 1953-06-30
•
Expires: 1970-02-10
Abstract
No abstract record available.
Inventors
- 👤 Paul D Bartlett
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 13:34
CPC Classifications
C; C07; C07C; C07C37/00; C07C37/01; C07C37/02; C07C37/055; C07C37/64
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
46 words
IN THE PRODUCTION OF A PHENOL BY THE ALKALINE HYDROLYSIS OF HEXACHLOROBENZENE, THE STEP WHICH COMPRISES CARRYING OUT THE REACTION IN THE PRESENCE OF A LIQUID, ALIPHATIC, TERTIARY ALCOHOL CONTAINING UP TO 10 CARBON ATOMS AT A REACTION TEMPERATURE AT WHICH THE ALCOHOL DOES NOT DECOMPOSE.
Claim 2
Dependent Claim
46 words
IN THE PRODUCTION OF A PHENOL BY THE ALKALINE HYDROLYSIS OF HEXACHLOROBENZENE, THE STEP WHICH COMPRISES CARRYING OUT THE REACTION IN THE PRESENCE OF A LIQUID, ALIPHATIC, TERTIARY ALCOHOL CONTAINING UP TO 10 CARBON ATOMS AT A REACTION TEMPERATURE AT WHICH THE ALCOHOL DOES NOT DECOMPOSE.
References Cited (Backward Citations)
US2107650A
Cited
US2509245A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-06-29 | 1956-12-29 | 1957-06-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-06-29 | 1960-12-29 | 1961-06-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-06-29 | 1964-12-29 | 1965-06-30 | $7700.00 | Window Closed / Lapsed |