US2564406A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Recovery of benzene hexachloride
Assignee: Ethyl Corp
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Filing: 1949-05-10
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Granted: 1951-08-14
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Expires: 1969-05-10
Abstract
No abstract record available.
Inventors
- 👤 Clarence M Neher
- 👤 Stephen N Hall
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 17:46
CPC Classifications
C; C07; C07C; C07C17/00; C07C17/38
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
74 words
IN THE RECOVERY OF SOLID DRY BENZENE HEXACHLORIDE FROM A SOLUTION THEREOF IN BENZENE, THE STEPS OF HEATING SOLUTION, VAPORIZING THE BENZENE AND SIMULTANEOUSLY FUSING THE BENZENE HEXACHLORIDE AT A TEMPERATURE OF 160 TO 215* C., WITHDRAWING THE USED BENZENE HEXACHLORIDE FROM CONTACT WITH THE BENZENE VAPOR WHILE MAINTAINING AT A TEMPERATURE WITHIN THE AFORESAID RANGE, THE TOTAL TIME OF THE BENZENE HEXACHLORIDE AT SAID TEMPERATURE BEING LESS THAN THAT GIVEN BY THE EXPRESSION
Claim 2
Dependent Claim
74 words
IN THE RECOVERY OF SOLID DRY BENZENE HEXACHLORIDE FROM A SOLUTION THEREOF IN BENZENE, THE STEPS OF HEATING SOLUTION, VAPORIZING THE BENZENE AND SIMULTANEOUSLY FUSING THE BENZENE HEXACHLORIDE AT A TEMPERATURE OF 160 TO 215* C., WITHDRAWING THE USED BENZENE HEXACHLORIDE FROM CONTACT WITH THE BENZENE VAPOR WHILE MAINTAINING AT A TEMPERATURE WITHIN THE AFORESAID RANGE, THE TOTAL TIME OF THE BENZENE HEXACHLORIDE AT SAID TEMPERATURE BEING LESS THAN THAT GIVEN BY THE EXPRESSION
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) | 1954-08-13 | 1955-02-12 | 1955-08-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-08-13 | 1959-02-12 | 1959-08-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-08-13 | 1963-02-12 | 1963-08-14 | $7700.00 | Window Closed / Lapsed |