Patent US3274265A successfully refreshed from Google Patents.
US3274265A
Expired / Lapsed
US
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Fluorinated organic compounds
Assignee: National Research Development Corp UK
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Filing: 1962-11-23
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Granted: 1966-09-20
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Expires: 1982-11-23
Abstract
No abstract record available.
Inventors
- 👤 Tatlow John Colin
- 👤 Stephens Robert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 22:24
CPC Classifications
C; C07; C07C; C07C17/00; C07C17/25; C07C23/00; C07C23/02; C07C23/10; C08; C08F; C08F36/00; C08F36/02; C08F36/04; C08F36/14; C08F36/16
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
62 words
PROCESS FOR THE PRODUCTION OF A POLYFLUOROALICYCLIC COMPOUND HAVING CONJUGATED UNSATURATION INCLUDING AT LEAST ONE GROUP OF FORUMLA =CR1R2 CONNECTED TO A NUCLEAR CARBON ATOM, WHEREIN R1 AND R2 ARE SELECTED FRM THE GROUP CONSISTING OF HYDROGEN, FLUORINE AND LOWER ALKYL GROUPS, THE RADICAL CR1R2 HAVING A MAXIMUM OF 5 CARBON ATOMS WHICH COMPRISES DEHYDROHALOGENATING A CORRESPONDING ALICYCLIC COMPOUND OF THE STRUCTURE
Claim 2
Dependent Claim
62 words
PROCESS FOR THE PRODUCTION OF A POLYFLUOROALICYCLIC COMPOUND HAVING CONJUGATED UNSATURATION INCLUDING AT LEAST ONE GROUP OF FORUMLA =CR1R2 CONNECTED TO A NUCLEAR CARBON ATOM, WHEREIN R1 AND R2 ARE SELECTED FRM THE GROUP CONSISTING OF HYDROGEN, FLUORINE AND LOWER ALKYL GROUPS, THE RADICAL CR1R2 HAVING A MAXIMUM OF 5 CARBON ATOMS WHICH COMPRISES DEHYDROHALOGENATING A CORRESPONDING ALICYCLIC COMPOUND OF THE STRUCTURE
Claim 3
Dependent Claim
12 words
A POLYFLUOROALICYCLIC COMPOUND OF A STRUCTURE SELECTED FROM THE GROUP CONSISTING OF
Claim 4
Dependent Claim
12 words
A POLYFLUOROALICYCLIC COMPOUND OF A STRUCTURE SELECTED FROM THE GROUP CONSISTING OF
References Cited (Backward Citations)
GB619394A
Cited
US3053909A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-09-19 | 1970-03-21 | 1970-09-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-09-19 | 1974-03-21 | 1974-09-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-09-19 | 1978-03-21 | 1978-09-20 | $7700.00 | Window Closed / Lapsed |