US2555889A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Manufacture of benzene hexachloride
Assignee: Ethyl Corp
•
Filing: 1950-05-20
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Granted: 1951-06-05
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Expires: 1970-05-20
Abstract
No abstract record available.
Inventors
- 👤 Kolka Alfred Jerome
- 👤 Orloff Harold David
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 18:33
CPC Classifications
C; C07; C07C; C07C17/00; C07C17/013; C07C17/02; Y; Y10; Y10S; Y10S204/00; Y10S204/902; Y10S204/903
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
57 words
IN THE PROCESS OF MANUFACTURING BENZENE HEXACHLORIDE BY THE PHOTOCHLORINATION OF BENZENE, THE IMPROVEMENT COMPRISES CONDUCTING SAID PHOTOCHLORINATION OF BENZENE IN ADMIXTURE WITH AN ADDITIVE SELECTED FROM THE CLASS CONSISTING OF SULFUR, SELENIUM, TELLURIUM AND CHLORIDES THEREOF, THE CONCENTRATION OF SAID ADDITIVE BEING WITHIN THE RANGE OF APPROXIMATELY .02 TO 2.0 PARTS PER 100 PARTS OF BENZENE.
Claim 2
Dependent Claim
57 words
IN THE PROCESS OF MANUFACTURING BENZENE HEXACHLORIDE BY THE PHOTOCHLORINATION OF BENZENE, THE IMPROVEMENT COMPRISES CONDUCTING SAID PHOTOCHLORINATION OF BENZENE IN ADMIXTURE WITH AN ADDITIVE SELECTED FROM THE CLASS CONSISTING OF SULFUR, SELENIUM, TELLURIUM AND CHLORIDES THEREOF, THE CONCENTRATION OF SAID ADDITIVE BEING WITHIN THE RANGE OF APPROXIMATELY .02 TO 2.0 PARTS PER 100 PARTS OF BENZENE.
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) | 1954-06-04 | 1954-12-04 | 1955-06-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-06-04 | 1958-12-04 | 1959-06-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-06-04 | 1962-12-04 | 1963-06-05 | $7700.00 | Window Closed / Lapsed |