US3268599A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for the preparation of cyclo
Assignee: Union Carbide Corp
•
Filing: 1964-07-09
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Granted: 1966-08-23
•
Expires: 1984-07-09
Abstract
No abstract record available.
Inventors
- 👤 Chow Sui-Wu
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 16:27
CPC Classifications
C; C08; C08G; C08G61/00; C08G61/02; C08G61/025; C07; C07C; C07C17/00; C07C17/093; C07C17/10; C07C17/14; C07C17/18; C07C17/20; C07C17/202; C07C17/206; C07C17/23; C07C17/26; C07C17/263; C07C17/269; C07C22/00; C07C22/02; C07C22/04; C07C22/08; C07C25/00; C07C25/02; C07C25/125; C07C25/13; C07C317/00; C07C317/02; C07C317/10; C07C317/14; C07C323/00; C07C323/01; C07C323/02; C07C323/07; C07C45/00; C07C45/42; C07C45/43; C08G2261/00; C08G2261/30; C08G2261/34; C08G2261/342; C08G2261/3424
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
11 words
A PROCESS FOR THE PREPARATION OF CYCLIC A-PERFLUORODI-P-XYLYLENE HAVING THE STRUCTURE
Claim 2
Dependent Claim
11 words
A PROCESS FOR THE PREPARATION OF CYCLIC A-PERFLUORODI-P-XYLYLENE HAVING THE STRUCTURE
References Cited (Backward Citations)
DE1085673B
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-08-22 | 1970-02-21 | 1970-08-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-08-22 | 1974-02-21 | 1974-08-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-08-22 | 1978-02-21 | 1978-08-23 | $7700.00 | Window Closed / Lapsed |