US2628982A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Bis (trichlormethyl) sulfone
Assignee: Monsanto Chemicals Ltd
•
Filing: 1951-03-31
•
Granted: 1953-02-17
•
Expires: 1971-03-31
Abstract
No abstract record available.
Inventors
- 👤 William R James
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 20:58
CPC Classifications
C; C07; C07C; C07C317/00; C07C317/02; C07C317/04
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
2 words
BIS-(TRICHLORMETHYL) SULFONE.
Claim 2
Dependent Claim
2 words
BIS-(TRICHLORMETHYL) SULFONE.
Claim 3
Dependent Claim
43 words
A PROCESS WHICH COMPRISES REACTING AN ALKALI METAL HYPOCHLORITE AND A SUBSTANCE SELECTED FROM THE GROUP CONSISTING OF THIODIGLYCOLIC ACID, WATER-SOLUBLE SALTS OF THIODIGLYCOLIC ACID AND MIXTURES THEREOF IN AN AQUEOUS SOLUTION UNDER SUBSTANTIALLY NEUTRAL TO ALKALINE CONDITIONS UNTIL BIS-(TRICHLORMETHYL) SULFONE IS FORMED.
Claim 4
Dependent Claim
43 words
A PROCESS WHICH COMPRISES REACTING AN ALKALI METAL HYPOCHLORITE AND A SUBSTANCE SELECTED FROM THE GROUP CONSISTING OF THIODIGLYCOLIC ACID, WATER-SOLUBLE SALTS OF THIODIGLYCOLIC ACID AND MIXTURES THEREOF IN AN AQUEOUS SOLUTION UNDER SUBSTANTIALLY NEUTRAL TO ALKALINE CONDITIONS UNTIL BIS-(TRICHLORMETHYL) SULFONE IS FORMED.
References Cited (Backward Citations)
US2127400A
Cited
US2484489A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-02-17 | 1956-08-18 | 1957-02-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-02-17 | 1960-08-18 | 1961-02-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-02-17 | 1964-08-18 | 1965-02-17 | $7700.00 | Window Closed / Lapsed |