Patent US4373976A successfully refreshed from Google Patents.
US4373976A
Expired / Lapsed
US
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Gun propellant containing nitroaminoguanidine
Assignee: Boeing North American Inc
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Filing: 1977-03-09
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Granted: 1983-02-15
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Expires: 1997-03-09
Abstract
Abstract A family of gun propellants formulated with nitroaminoguanidine (NAGU), as an oxidizer, to reduce the isochoric flame temperature while providing high mass impetus.
Inventors
- 👤 Joseph E. Flanagan
- 👤 Vernon E. Haury
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 08:12
CPC Classifications
C; C06; C06B; C06B25/00; C06B25/34; C06B23/00; C06B23/001
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
19 words
A gun propellant comprising: Nitroaminoguanidine--50-80 percent Nitrocellulose (12.6% N)--15-40 percent Cyclotetramethylene tetranitramine--0-30 percent Inert Plasticizer triacetin or isodecylpelarganate--0-15 percent.
Claim 2
Dependent Claim
19 words
A gun propellant comprising: Nitroaminoguanidine--50-80 percent Nitrocellulose (12.6% N)--15-40 percent Cyclotetramethylene tetranitramine--0-30 percent Inert Plasticizer triacetin or isodecylpelarganate--0-15 percent.
References Cited (Backward Citations)
US3909322A
Cited
US3940298A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1986-02-14 | 1986-08-16 | 1987-02-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-02-14 | 1990-08-16 | 1991-02-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-02-14 | 1994-08-16 | 1995-02-15 | $7700.00 | Window Closed / Lapsed |