US2875253A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Telomerization with fluorobromoalkanes
Assignee: 3M Co
•
Filing: 1953-04-06
•
Granted: 1959-02-24
•
Expires: 1973-04-06
Abstract
No abstract record available.
Inventors
- 👤 William S Barnhart
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 19:07
CPC Classifications
C; C07; C07C; C07C19/00; C07C19/08; C07C19/14; C07C17/00; C07C17/26; C07C17/272; C07C17/278; C10; C10M; C10M2211/00; C10M2211/06; C10M2211/08; C10M2213/00; C10M2213/02; C10M2213/06; C10M2213/062; C10M2217/00; C10M2217/02; C10M2217/026; C10N; C10N2040/00; C10N2040/08; C10N2040/14; C10N2040/16; C10N2040/17
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
39 words
A PROCESS FOR THE PRODUCTION OF LOW MOLECULAR WEIGHT BROMINE AND FLUORINE-CONTAINING TELOMERS CONTAINING A PLURALITY OF MONOMER UNITS, WHICH COMPRISES TELOMERIZING A FLUORINE-CONTAINING OLEFIN IN THE PRESENCE OF A PEROXY COMPOUND AS A POLYMERIZATION PROMOTER AND A FLUOROBROMOALKANE.
Claim 2
Dependent Claim
39 words
A PROCESS FOR THE PRODUCTION OF LOW MOLECULAR WEIGHT BROMINE AND FLUORINE-CONTAINING TELOMERS CONTAINING A PLURALITY OF MONOMER UNITS, WHICH COMPRISES TELOMERIZING A FLUORINE-CONTAINING OLEFIN IN THE PRESENCE OF A PEROXY COMPOUND AS A POLYMERIZATION PROMOTER AND A FLUOROBROMOALKANE.
References Cited (Backward Citations)
US2440800A
Cited
US2411159A
Cited
US2462402A
Cited
US2551639A
Cited
US2598283A
Cited
US2689872A
Cited
US2662065A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-02-23 | 1962-08-25 | 1963-02-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-02-23 | 1966-08-25 | 1967-02-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-02-23 | 1970-08-25 | 1971-02-24 | $7700.00 | Window Closed / Lapsed |