US3629326A
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Perfluoro - 1 - cycloalken-1 2-ylene-diphosphoryl compounds and process for the preparation thereof
Assignee: GE Chemicals Inc
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Filing: 1969-09-08
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Granted: 1971-12-21
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Expires: 1989-09-08
Abstract
Abstract A PERFLUORO-1-CYCLOALKEN-1,2-YLENEDIPHOSPHORIC ACID OF THE FORMULA (CF2)M<(-C(-P(=O)(-OH)2)=C(-P(=O)(-OH)2)-) WHEREIN M IS FROM 2 TO 4.
Inventors
- 👤 Arlen W Frank
- 👤 Charles F Baranauckas
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 22:54
CPC Classifications
C; C08; C08J; C08J9/00; C08J9/0014; C08J9/0038; A; A01; A01N; A01N57/00; A01N57/18; C07; C07F; C07F9/00; C07F9/02; C07F9/28; C07F9/30; C07F9/32; C07F9/3205; C07F9/3235; C07F9/38; C07F9/3804; C07F9/383; C07F9/40; C07F9/4003; C07F9/4018; C07F9/4025; C07F9/42; C07F9/50; C07F9/53; C07F9/5329; C08J2375/00; C08J2375/04; Y; Y10; Y10S; Y10S210/00; Y10S210/902; Y10S210/911; Y10S210/912
Claims Analysis
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References Cited (Backward Citations)
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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) | 1974-12-20 | 1975-06-21 | 1975-12-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-12-20 | 1979-06-21 | 1979-12-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-12-20 | 1983-06-21 | 1983-12-21 | $7700.00 | Window Closed / Lapsed |