Patent US1681046A successfully refreshed from Google Patents.
Patent US2716141A successfully refreshed from Google Patents.
US2716141A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Preparation of halo aliphatic compounds
Assignee: Individual
•
Filing: 1950-12-13
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Granted: 1955-08-23
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Expires: 1970-12-13
Abstract
No abstract record available.
Inventors
- 👤 William T Miller
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 15:44
CPC Classifications
C; C07; C07C; C07C23/00; C07C23/18; C07C17/00; C07C17/013; C07C17/04; C07C17/23; C07C17/26; C07C17/272; C07C17/278; C07C17/281; C07C19/00; C07C19/08; C07C19/10; C07C23/02; C07C23/06
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
67 words
PERHALOGENATED BUTANES CONTAINING AT LEAST FOUR FLUORINE ATOMS, AT LEAST ONE OF WHICH IS ON EACH OF THE END CARBON ATOMS OF THE BUTANE CHAIN AND SUBSTITUTED BY AT LEAST ONE HALOGEN ATOM OTHER THAN FLUORINE ON EACH CARBON ATOM OF THE BUTANE CHAIN, THE REMAINING SUBSTITUENTS BEING SELECTED FROM THE GROUP CONSISTING OF FLUORINE, CHLORINE, SATURATED PERFLUORO AND PERFLUOROCHLORO GROUPS CONTAINING FEWER THAN THREE CARBON ATOMS.
Claim 2
Dependent Claim
67 words
PERHALOGENATED BUTANES CONTAINING AT LEAST FOUR FLUORINE ATOMS, AT LEAST ONE OF WHICH IS ON EACH OF THE END CARBON ATOMS OF THE BUTANE CHAIN AND SUBSTITUTED BY AT LEAST ONE HALOGEN ATOM OTHER THAN FLUORINE ON EACH CARBON ATOM OF THE BUTANE CHAIN, THE REMAINING SUBSTITUENTS BEING SELECTED FROM THE GROUP CONSISTING OF FLUORINE, CHLORINE, SATURATED PERFLUORO AND PERFLUOROCHLORO GROUPS CONTAINING FEWER THAN THREE CARBON ATOMS.
Claim 3
Dependent Claim
52 words
A CONDENSATION PROCESS WHICH COMPRISES REACTING AN OLEFIN OF NOT MORE THAN 8 CARBON ATOMS PER MOLECULE COMPLETELY SUBSTITUTED ONLY WITH GASEOUS HALOGEN AND CONTAINING A FLUORINE ATOM ATTACHED TO A DOUBLY BONDED CARBON ATOM WITH FLUORINE TO PRODUCE A CONDENSATION PRODUCT OF SAID OLEFIN CONTAINING AT LEAST TWO ADDED FLUORINE ATOMS.
Claim 4
Dependent Claim
52 words
A CONDENSATION PROCESS WHICH COMPRISES REACTING AN OLEFIN OF NOT MORE THAN 8 CARBON ATOMS PER MOLECULE COMPLETELY SUBSTITUTED ONLY WITH GASEOUS HALOGEN AND CONTAINING A FLUORINE ATOM ATTACHED TO A DOUBLY BONDED CARBON ATOM WITH FLUORINE TO PRODUCE A CONDENSATION PRODUCT OF SAID OLEFIN CONTAINING AT LEAST TWO ADDED FLUORINE ATOMS.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-08-22 | 1959-02-21 | 1959-08-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-08-22 | 1963-02-21 | 1963-08-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-08-22 | 1967-02-21 | 1967-08-23 | $7700.00 | Window Closed / Lapsed |