US2922823A
Expired / Lapsed
US
⏱️ 0.0 years remaining
2-vinylchlorohexafluorocyclobutane
Assignee: Dow Silicones Corp
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Filing: 1958-07-16
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Granted: 1960-01-26
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Expires: 1978-07-16
Abstract
No abstract record available.
Inventors
- 👤 Tarrant Paul
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 19:58
CPC Classifications
C; C08; C08G; C08G77/00; C08G77/04; C08G77/38; C08G77/382; C08G77/385; C07; C07C; C07C17/00; C07C17/25; C07C17/26; C07C17/272; C07C17/278; C07C23/00; C07C23/02; C07C23/06; C07F; C07F7/00; C07F7/02; C07F7/08; C07F7/12
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-01-25 | 1963-07-27 | 1964-01-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-01-25 | 1967-07-27 | 1968-01-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-01-25 | 1971-07-27 | 1972-01-26 | $7700.00 | Window Closed / Lapsed |