Patent US1210762A successfully refreshed from Google Patents.
Patent US3238204A successfully refreshed from Google Patents.
US3238204A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for preparing halogenated amides
Assignee: Pennwalt Corp
•
Filing: 1963-04-12
•
Granted: 1966-03-01
•
Expires: 1983-04-12
Abstract
No abstract record available.
Inventors
- 👤 Glenside Murray Hauptschein
- 👤 Braid Milton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 10:01
CPC Classifications
C; C08; C08G; C08G69/00; C08G69/42
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
58 words
A METHOD FOR PREPARING HALOGENATED AMIDES WHICH COMPRISES INITMATELY CONTACTING A COMPOUND SELECTED FROM THE CLASS CONSISTING OF AMMONIA, PRIMARY AMINES AND SECONDARY AMINES WITH A HALOGENATED HALOSULFATE OF THE FORMULA RCX2OXO2X WHERE R IS HALOCARBON RADICAL HAVING FROM 1 TO ABOUT 50 CARBON ATOMS AND WHERE X IS SELECTED FROM THE CLASS CONSISTING OF CHLORINE AND FLUORINE.
Claim 2
Independent Claim
58 words
A METHOD FOR PREPARING HALOGENATED AMIDES WHICH COMPRISES INITMATELY CONTACTING A COMPOUND SELECTED FROM THE CLASS CONSISTING OF AMMONIA, PRIMARY AMINES AND SECONDARY AMINES WITH A HALOGENATED HALOSULFATE OF THE FORMULA RCX2OXO2X WHERE R IS HALOCARBON RADICAL HAVING FROM 1 TO ABOUT 50 CARBON ATOMS AND WHERE X IS SELECTED FROM THE CLASS CONSISTING OF CHLORINE AND FLUORINE.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-02-28 | 1969-08-30 | 1970-03-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-02-28 | 1973-08-30 | 1974-03-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-02-28 | 1977-08-30 | 1978-03-01 | $7700.00 | Window Closed / Lapsed |