US3811966A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Composite modified double-base propellants with very high burning rates
Assignee: United States Department of the Army
•
Filing: 1969-06-24
•
Granted: 1974-05-21
•
Expires: 1989-06-24
Abstract
Abstract COMPOSITE MODIFIED DOUBLE-BASE PROPELLANTS WITH VERY HIGH BURNING RATES RESULT WHEN 11-ISOPROPENYL, 12-PROP-(2ONE)-YL-CACARBORANE CH2=C(-CH3)-C2B10H10-CH2-CO-CH3, (IPCA), A LIQUID KETONE DERIVATIVE OF ISOPROPENYLCARBORANE, IS EMPLOYED AS THE BURNING RATE CATALYST FOR THE PROPELLANT COMPOSITION.
Inventors
- 👤 W Hill
- 👤 L Beason
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 11:18
CPC Classifications
C; C06; C06B; C06B23/00; C06B23/007; C06B47/00; C06B47/02; C06B47/10
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
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) | 1977-05-20 | 1977-11-19 | 1978-05-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-05-20 | 1981-11-19 | 1982-05-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-05-20 | 1985-11-19 | 1986-05-21 | $7700.00 | Window Closed / Lapsed |