US3558720A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluoro-alkyl-substituted polynitro diphenyl ethers and a process for preparing the same
Assignee: United States Department of the Air Force
•
Filing: 1964-01-28
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Granted: 1971-01-26
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Expires: 1984-01-28
Abstract
Abstract 1. THE COMPOUNDS HAVING THE FORMULA: 2,4,6-TRI(NO2-),3-R1,5-R2,2''-R5,3''-R3,4''-R6,6''-R4-DIPHENYL ETHER WHEREIN R1, R2 AND R3 EACH REPRESENT A MEMBER SELECTED FROM THE GROUP CONSISTING OF HYDROGEN, A MONOVALENT LOWER ALKYL RADICAL, AND A FLUORO-SUBSTITUTED MONOVALENT LOWER ALKYL RADICAL PROVIDED THAT AT LEAST ONE OF THE SUBSTITUENTS R1, R2 AND R3 IS A FLUORO-SUBSTITUTED MONOVALENT LOWER ALKYL RADICAL; AND R4, R5 AND R6 EACH REPRESENT A MEMBER SELECTED FROM THE GROUP CONSISTING OF HYDROGEN AND A NITRO RADICAL.
Inventors
- 👤 Josef J Schmidt-Collerus
- 👤 Don N Gray
- 👤 George W Jordan Jr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 04:59
CPC Classifications
C; C06; C06B; C06B25/00; C06B43/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
5 words
THE COMPOUNDS HAVING THE FORMULA:
Claim 2
Dependent Claim
5 words
THE COMPOUNDS HAVING THE FORMULA:
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) | 1974-01-25 | 1974-07-27 | 1975-01-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-01-25 | 1978-07-27 | 1979-01-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-01-25 | 1982-07-27 | 1983-01-26 | $7700.00 | Window Closed / Lapsed |