US3865845A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluorinated dioxoles
Assignee: Individual
•
Filing: 1973-08-01
•
Granted: 1975-02-11
•
Expires: 1993-08-01
Abstract
Abstract Fluorinated dioxole compounds and the process of preparation are disclosed which compounds are of the formula WHEREIN R1 and R2 are both perhalogenated hydrocarbon radicals of 1 to 3 carbon atoms containing at least one fluorine atom. The compounds may be homopolymerized and copolymerized for casting into films or yielding molded articles.
Inventors
- 👤 Paul Raphael Resnick
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 23:29
CPC Classifications
C; C08; C08F; C08F24/00
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
7 words
A FLUORINATED DIOXOLE OF THE GENERAL FORMULA
Claim 2
Dependent Claim
7 words
A FLUORINATED DIOXOLE OF THE GENERAL FORMULA
Claim 3
Dependent Claim
15 words
The fluorinated dioxole of claim 1 wherein both R1 and R2 contain one carbon atom.
Claim 4
Dependent Claim
12 words
The fluorinated dioxole of claim 2 wherein R1 and R2 are different.
Claim 5
Dependent Claim
9 words
The fluorinated dioxole of claim 2 which is perfluoro-2,2-dimethyl-1,3-dioxole.
References Cited (Backward Citations)
US3641057A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-02-10 | 1978-08-12 | 1979-02-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-02-10 | 1982-08-12 | 1983-02-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-02-10 | 1986-08-12 | 1987-02-11 | $7700.00 | Window Closed / Lapsed |