US2608660A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for halogenation
Assignee: Heyden Chemical Corp
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Filing: 1950-06-13
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Granted: 1952-08-26
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Expires: 1970-06-13
Abstract
No abstract record available.
Inventors
- 👤 Henry J Noebeis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 23:45
CPC Classifications
C; C07; C07C; C07C17/00; C07C17/093; C07C17/10; C07C17/14
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
67 words
AN APPARATUS FOR PRODUCTING A HALO-ALKYL SUBSTITUTED BENZENE, WHICH COMPRISES AN ALL-GLASS BUBBLE CAP COLUMN ACCESSIBLE TO ACTINIC RAYS HAVING SUCCESSIVE PLATES WITH INTERCONNECTING LIQUIDCONVEYING DOWNCOMERS, THE LOWER PORTION OF SAID DOWNCOMERS BEING LOCATED BELOW THE LIQUID SURFACE OF THE LOWER PLATE, THE VAPOR SPACE BETWEEN SAID PLATES PREDOMINATING OVER THE LIQUID CAPACITY, AND IN WHICH THE BUBBLE CAPS ARE FREE FROM VAPOR OPENINGS NEAR SAID DOWNCOMERS.
Claim 2
Independent Claim
67 words
AN APPARATUS FOR PRODUCTING A HALO-ALKYL SUBSTITUTED BENZENE, WHICH COMPRISES AN ALL-GLASS BUBBLE CAP COLUMN ACCESSIBLE TO ACTINIC RAYS HAVING SUCCESSIVE PLATES WITH INTERCONNECTING LIQUIDCONVEYING DOWNCOMERS, THE LOWER PORTION OF SAID DOWNCOMERS BEING LOCATED BELOW THE LIQUID SURFACE OF THE LOWER PLATE, THE VAPOR SPACE BETWEEN SAID PLATES PREDOMINATING OVER THE LIQUID CAPACITY, AND IN WHICH THE BUBBLE CAPS ARE FREE FROM VAPOR OPENINGS NEAR SAID DOWNCOMERS.
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) | 1955-08-26 | 1956-02-25 | 1956-08-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-08-26 | 1960-02-25 | 1960-08-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-08-26 | 1964-02-25 | 1964-08-26 | $7700.00 | Window Closed / Lapsed |