US5460669A
Expired / Lapsed
US
⏱️ 0.0 years remaining
3-nitramino-4-nitrofurazan and salts thereof
Assignee: Northrop Grumman Innovation Systems LLC
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Filing: 1993-06-28
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Granted: 1995-10-24
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Expires: 2013-06-28
Abstract
Abstract The energetic salts of 3-nitramino-4-nitrofurazan have a desirable combination of desirable properties such as sufficiently high densities, and low or no hydrogen content. The salts are useful as ingredients in various propellant, explosive, gassifier, and pyrotechnic compositions. 3-Nitramino-4-nitrofurazan is itself a useful energetic compound and is also useful in the synthesis of still further energetic compounds.
Inventors
- 👤 Rodney L. Willer
- 👤 Robert S. Day
- 👤 Dennis J. Park, deceased
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 10:07
CPC Classifications
C; C06; C06B; C06B25/00; C06B25/34; C06B41/00; C06B47/00; C07; C07D; C07D271/00; C07D271/02; C07D271/08
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
36 words
3-nitramino-4-nitrofurazan and salts thereof wherein a salt has the formula MX n wherein M is a cation, X is the anion of 3-nitramino-4-nitrofurazan, and n is an integer corresponding to the valence of the cation M.
Claim 2
Dependent Claim
36 words
3-nitramino-4-nitrofurazan and salts thereof wherein a salt has the formula MX n wherein M is a cation, X is the anion of 3-nitramino-4-nitrofurazan, and n is an integer corresponding to the valence of the cation M.
Claim 3
Dependent Claim
12 words
A salt according to claim 1, wherein M is a metal cation.
Claim 4
Dependent Claim
12 words
A salt according to claim 2, wherein the metal cation is mono-valent.
Claim 5
Dependent Claim
14 words
A salt according to claim 3, wherein the metal cation is potassium or sodium.
Claim 6
Dependent Claim
12 words
A salt according to claim 1, wherein M is a non-metallic cation.
Claim 7
Dependent Claim
33 words
A salt according to claim 5, wherein M is selected from the group consisting of NH 4 + , (NH 3 OH) + , (NH 3 NH 2 ) + , and dinitroazetidium.
Claim 8
Dependent Claim
43 words
A liquid gun propellant composition comprising a salt of 3-nitramino-4-nitrofurazan, wherein said salt has the formula MX n , wherein M is a cation, X is the anion of 3-nitramino-4-nitrofurazan, and n is an integer corresponding to the valence of the cation M.
Claim 9
Dependent Claim
43 words
A liquid gun propellant composition comprising a salt of 3-nitramino-4-nitrofurazan, wherein said salt has the formula MX n , wherein M is a cation, X is the anion of 3-nitramino-4-nitrofurazan, and n is an integer corresponding to the valence of the cation M.
Claim 10
Dependent Claim
15 words
A liquid gun propellant composition according to claim 7, wherein M is a non-metallic cation.
Claim 11
Dependent Claim
36 words
A liquid gun propellant composition according to claim 8, wherein M is selected from the group consisting of NH 4 + , (NH 3 OH) + , (NH 3 NH 2 ) + , and dinitroazetidium.
Claim 12
Dependent Claim
26 words
A salt according to claim 5, wherein M is selected from the group consisting of guanidinium and (C(CH 2 NH 3 ) 4 ) +4 .
Claim 13
Dependent Claim
5 words
The hydroxylammonium salt of 3-nitramino-4-nitrofurazan.
Claim 14
Dependent Claim
5 words
The hydroxylammonium salt of 3-nitramino-4-nitrofurazan.
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1998-10-23 | 1999-04-24 | 1999-10-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2002-10-23 | 2003-04-24 | 2003-10-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2006-10-23 | 2007-04-24 | 2007-10-24 | $7700.00 | Window Closed / Lapsed |