Patent US3022356A successfully refreshed from Google Patents.
US3022356A
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Process for preparing bis (omega-hydroperfluoroalkyl) carbinols
Assignee: EIDP Inc
•
Filing: 1958-10-16
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Granted: 1962-02-20
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Expires: 1978-10-16
Abstract
No abstract record available.
Inventors
- 👤 Ill Charles D Ver Nooy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 07:37
CPC Classifications
C; C07; C07C; C07C31/00; C07C31/34; C07C31/38; C07C29/00; C07C29/44; Y; Y10; Y10S; Y10S516/00; Y10S516/01
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
7 words
PROCESS FOR PREPARING BIS(W-HYDROPERFLUOROALKYL)CARBINOLS HAVING THE STRUCTURE
Claim 2
Dependent Claim
7 words
PROCESS FOR PREPARING BIS(W-HYDROPERFLUOROALKYL)CARBINOLS HAVING THE STRUCTURE
References Cited (Backward Citations)
US2072806A
Cited
US2559628A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-02-19 | 1965-08-21 | 1966-02-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-02-19 | 1969-08-21 | 1970-02-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-02-19 | 1973-08-21 | 1974-02-20 | $7700.00 | Window Closed / Lapsed |