US4565855A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polymers of dioxolanes
Assignee: EIDP Inc
•
Filing: 1984-10-29
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Granted: 1986-01-21
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Expires: 2004-10-29
Abstract
Abstract Perhalogenated dioxoles, halogenated dioxolanes, a process for making the dioxoles and dioxolanes, and polymers of dioxole and dioxolane monomers.
Inventors
- 👤 Burton C. Anderson
- 👤 David C. England
- 👤 Paul R. Resnick
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 09:31
CPC Classifications
C; C08; C08F; C08F24/00; C07; C07D; C07D317/00; C07D317/08; C07D317/10; C07D317/32; C07D317/42
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
34 words
A polymer of a dioxolane of the formula: ##STR26## wherein X 2 , X 3 , X 4 and X 5 , independently, are Cl or F, provided that at least two are F.
Claim 2
Dependent Claim
34 words
A polymer of a dioxolane of the formula: ##STR26## wherein X 2 , X 3 , X 4 and X 5 , independently, are Cl or F, provided that at least two are F.
Claim 3
Dependent Claim
36 words
A copolymer of a dioxolane of the formula: ##STR27## wherein: X 2 , X 3 , X 4 and X 5 , independently, are Cl or F, provided that at least two are F; and tetrafluoroethylene.
Claim 4
Dependent Claim
36 words
A copolymer of a dioxolane of the formula: ##STR27## wherein: X 2 , X 3 , X 4 and X 5 , independently, are Cl or F, provided that at least two are F; and tetrafluoroethylene.
Claim 5
Dependent Claim
22 words
A copolymer according to claim 2 wherein X 2 and X 4 are F and X 3 and X 5 are Cl.
Claim 6
Dependent Claim
10 words
A coating solution comprising a polymer according to claim 1.
Claim 7
Dependent Claim
10 words
A coating solution comprising a copolymer according to claim 2.
Claim 8
Dependent Claim
10 words
A coating solution comprising a copolymer according to claim 3.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1989-01-20 | 1989-07-22 | 1990-01-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-01-20 | 1993-07-22 | 1994-01-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-01-20 | 1997-07-22 | 1998-01-21 | $7700.00 | Window Closed / Lapsed |