US3667524A
Expired / Lapsed
US
⏱️ 0.0 years remaining
High-energy propellant containing coated hydrazinium azide
Assignee: ATK Launch Systems LLC
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Filing: 1969-03-28
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Granted: 1972-06-06
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Expires: 1989-03-28
Abstract
Abstract A high energy propellant of hydrazinium azide coated with a nonhygroscopic coating.
Inventors
- 👤 John E Paustian
- 👤 Marvin M Fein
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 17:02
CPC Classifications
C; C06; C06B; C06B45/00; C06B45/18; C06B45/30; C06B45/32; C06B45/34; C06B47/00; C06B47/02; C06B47/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
20 words
The propellant of claim 1 wherein the coating material has a burning rate lower than that of said hydrazinium azide.
Claim 2
Dependent Claim
11 words
The propellant of claim 1 wherein said coating material is nitrocellulose.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-06-06 | 1975-12-06 | 1976-06-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-06-06 | 1979-12-06 | 1980-06-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-06-06 | 1983-12-06 | 1984-06-06 | $7700.00 | Window Closed / Lapsed |