Patent JPS5895690A successfully refreshed from Google Patents.
Patent US2790815A successfully refreshed from Google Patents.
US2790815A
Expired / Lapsed
US
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Process of making fluorinated acyl fluroides
Assignee: 3M Co
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Filing: 1954-09-01
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Granted: 1957-04-30
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Expires: 1974-09-01
Abstract
No abstract record available.
Inventors
- 👤 Thomas J Brice
- 👤 Wayne A Severson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 13:13
CPC Classifications
C; C07; C07C; C07C53/00; C07C53/38; C07C53/46; C07C53/50; C07C51/00; C07C51/58
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
63 words
A PROCESS OF MAKING FLUORINATED ACYL FLORIDE COMPOUNDS WHICH COMPRISES THERMALLY REEACTING IN VAPOR PHASES A STARTING COMPOUND OF THE CLASS CONSISTING OF PERFLUOROALKYLDIFLUOROMETHYL AND CHLOROPERFLUOROALKYLDIFLUOROMETHYL COMPOUNDS CONTAINING 4 TO 12 CARBON ATOMS IN THE MOLECULE, WITH A MIXTURE OF A REACTANT OF THE CLASS CONSISTING OF NITROGEN DIOXIDE AND NITRIC OXIDE AND A REACTANT OF THE CLASS CONSISTING OF CHLORINE AND BROMINE.
Claim 2
Dependent Claim
63 words
A PROCESS OF MAKING FLUORINATED ACYL FLORIDE COMPOUNDS WHICH COMPRISES THERMALLY REEACTING IN VAPOR PHASES A STARTING COMPOUND OF THE CLASS CONSISTING OF PERFLUOROALKYLDIFLUOROMETHYL AND CHLOROPERFLUOROALKYLDIFLUOROMETHYL COMPOUNDS CONTAINING 4 TO 12 CARBON ATOMS IN THE MOLECULE, WITH A MIXTURE OF A REACTANT OF THE CLASS CONSISTING OF NITROGEN DIOXIDE AND NITRIC OXIDE AND A REACTANT OF THE CLASS CONSISTING OF CHLORINE AND BROMINE.
References Cited (Backward Citations)
US2472946A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-04-29 | 1960-10-29 | 1961-04-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-04-29 | 1964-10-29 | 1965-04-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-04-29 | 1968-10-29 | 1969-04-30 | $7700.00 | Window Closed / Lapsed |