US2991168A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fibrous solid propellants in sheet form
Assignee: Individual
•
Filing: 1957-11-18
•
Granted: 1961-07-04
•
Expires: 1977-11-18
Abstract
No abstract record available.
Inventors
- 👤 Isidore G Nadel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 23:15
CPC Classifications
C; C06; C06B; C06B25/00; C06B25/18; C06B21/00; C06B21/0033; C06B45/00; F; F42; F42B; F42B5/00; F42B5/02; F42B5/18; F42B5/188
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
44 words
HIGHLY COMBUSTIBLE, FIBROUS MATERIAL COMPOSED ESSENTIALLY OF A SPUN NITROCELLULOSE PROPELLANT COMPOSITION IN THE FORM OF UNIFORM SYNTHETIC FILAMENTS, SAID PROPELLANT COMPOSITION CONSISTING ESSENTIALLY OF APPROXIMATELY 99 PERCENT NITROCELLULOSE HAVING A NITROGEN CONTENT OF FROM 12.6 PERCENT TO 13.25 PERCENT AND APPROXIMATE1 PERCENT DIPHENYLAMINE.
Claim 2
Dependent Claim
44 words
HIGHLY COMBUSTIBLE, FIBROUS MATERIAL COMPOSED ESSENTIALLY OF A SPUN NITROCELLULOSE PROPELLANT COMPOSITION IN THE FORM OF UNIFORM SYNTHETIC FILAMENTS, SAID PROPELLANT COMPOSITION CONSISTING ESSENTIALLY OF APPROXIMATELY 99 PERCENT NITROCELLULOSE HAVING A NITROGEN CONTENT OF FROM 12.6 PERCENT TO 13.25 PERCENT AND APPROXIMATE1 PERCENT DIPHENYLAMINE.
References Cited (Backward Citations)
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Cited
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Cited
US1896642A
Cited
US2091969A
Cited
US2320243A
Cited
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Cited
US2514412A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-07-03 | 1965-01-02 | 1965-07-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-07-03 | 1969-01-02 | 1969-07-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-07-03 | 1973-01-02 | 1973-07-04 | $7700.00 | Window Closed / Lapsed |