US2759969A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Recovery of perchloromethyl mercaptan
Assignee: Bayer AG
•
Filing: 1953-06-10
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Granted: 1956-08-21
•
Expires: 1973-06-10
Abstract
No abstract record available.
Inventors
- 👤 Jonas Heinz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 18:31
CPC Classifications
C; C07; C07C; C07C313/00; C07C313/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
54 words
IN THE PROCESS OF RECOVERING PERCHLOROMETHYL MERCAPTAN FROM A MIXTURE OF PERCHLOROMETHYL MERCAPTAN AND AT LEAST ONE SULFUR CHLORIDE THE STEP WHICH COMPRISES MIXING THE MIXTURE WITH AN AQUEOUS SOLUTION CONTAINING A COMPOUND OF THE GROUP CONSISTING OF AN AQUEOUS SULFUROUS ACID AND WATER SOLUBLE SALTS THEREOF AT A TEMPERATURE BELOW ABOUT +10* C.
Claim 2
Dependent Claim
54 words
IN THE PROCESS OF RECOVERING PERCHLOROMETHYL MERCAPTAN FROM A MIXTURE OF PERCHLOROMETHYL MERCAPTAN AND AT LEAST ONE SULFUR CHLORIDE THE STEP WHICH COMPRISES MIXING THE MIXTURE WITH AN AQUEOUS SOLUTION CONTAINING A COMPOUND OF THE GROUP CONSISTING OF AN AQUEOUS SULFUROUS ACID AND WATER SOLUBLE SALTS THEREOF AT A TEMPERATURE BELOW ABOUT +10* C.
References Cited (Backward Citations)
US2664442A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-08-21 | 1960-02-20 | 1960-08-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-08-21 | 1964-02-20 | 1964-08-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-08-21 | 1968-02-20 | 1968-08-21 | $7700.00 | Window Closed / Lapsed |