Patent US3513206A successfully refreshed from Google Patents.
US3513206A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Synthesis of alpha-hydroheptafluorostyrene and improved synthesis of octafluorostyrene
Assignee: United States Department of the Navy
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Filing: 1963-08-12
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Granted: 1970-05-19
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Expires: 1983-08-12
Abstract
No abstract record available.
Inventors
- 👤 Leo A Wall
- 👤 Joseph M Antonucci
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 20:04
CPC Classifications
C; C07; C07C; C07C29/00; C07C29/36; C07C29/38; C07C29/40; C07C17/00; C07C17/093; C07C17/16; C07C17/23; C07C17/25; C07C25/00; C07C25/02; C07C25/13; C07C33/00; C07C33/40; C07C33/46; C07C45/00; C07C45/42
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
4 words
2,3,4,5,6-PENTAFLUORO-A-(CHLORODIFLUOROMETHYL) BENZYL ALCOHOL. 3.(2-CHLORO-1,2,2-TRIFLUOROETHYL)PERFLUOROBENZENE.
Claim 2
Dependent Claim
4 words
2,3,4,5,6-PENTAFLUORO-A-(CHLORODIFLUOROMETHYL) BENZYL ALCOHOL. 3.(2-CHLORO-1,2,2-TRIFLUOROETHYL)PERFLUOROBENZENE.
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US3148223A
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Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-05-18 | 1973-11-17 | 1974-05-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-05-18 | 1977-11-17 | 1978-05-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-05-18 | 1981-11-17 | 1982-05-19 | $7700.00 | Window Closed / Lapsed |