Patent US3706772A successfully refreshed from Google Patents.
US3706772A
Expired / Lapsed
US
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Fluorodiglycidyl ethers
Assignee: United States Department of the Navy
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Filing: 1971-03-23
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Granted: 1972-12-19
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Expires: 1991-03-23
Abstract
Abstract COMPOUNDS OF THE FORMULAE 1-(X-C(-CF3)2-),4-(Y-C(-CF3)2-),2,3,5,6-TETRA(F-)BENZENE 4-(X-C(-CF3)2-),4''-(Y-C(-CH3)2-),2,2'',3,3'',5,5'',6,6''- OCTA(F-)BIPHENYL WHEREIN X AND Y OH OR (CH3-O-)OXIRANE USEFUL FOR PRODUCING POLYMERS WITH FILM FORMING PROPERTIES.
Inventors
- 👤 Scott A Reines
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 22:14
CPC Classifications
C; C07; C07D; C07D303/00; C07D303/02; C07D303/12; C07D303/18; C07D303/20; C07D303/24
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) | 1975-12-19 | 1976-06-19 | 1976-12-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-12-19 | 1980-06-19 | 1980-12-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-12-19 | 1984-06-19 | 1984-12-19 | $7700.00 | Window Closed / Lapsed |