US2706709A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Photochemical chlorination
Assignee: BASF SE
•
Filing: 1951-05-16
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Granted: 1955-04-19
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Expires: 1971-05-16
Abstract
No abstract record available.
Inventors
- 👤 Wintersberger Karl
- 👤 Rommel Otto
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 09:05
CPC Classifications
C; C07; C07C; C07C17/00; C07C17/093; C07C17/10
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
57 words
A PROCESS FOR PHOTOCHEMICALLY CHLORINATING A SATURATED GASEOUS HYDROCARBON WHICH COMPRISES ACTIVATING THE CHLORINATION BY EXPOSING A MIXTURE OF CHLORINE AND SAID HYDROCARBON IN A CHAMBER TO THE RADIATIONS ARISING FROM A HYDROGEN-CHLORINE FLAME BURNING IN A SEPARATE LIGHTTRANSMITTING CHAMBER, SAID FLAME BEING ADJUSTING TO PRODUCE IN SAID FIRST-NAMED CHAMBER A SUFFICIENT TEMPERATURE TO PROMOTE SAID CHLORINATION.
References Cited (Backward Citations)
US2462669A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-04-18 | 1958-10-18 | 1959-04-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-04-18 | 1962-10-18 | 1963-04-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-04-18 | 1966-10-18 | 1967-04-19 | $7700.00 | Window Closed / Lapsed |