US3677839A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Composite propellant containing ballistic modifiers derived from metal chelates
Assignee: United States Department of the Army
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Filing: 1967-02-23
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Granted: 1972-07-18
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Expires: 1987-02-23
Abstract
Abstract A NOVEL BALLISTIC MODIFIER FOR USE IN COMPOSITE PROPELLANT COMPOSITIONS. THE BALLISTIC MODIFIER CONTAINS A METAL SALT OF A BIS(SALICYL)ALDIMINE. METALS WITH ATOMIC NUMBERS FROM TWENTY-FOUR TO THIRTY MAY BE USED.
Inventors
- 👤 David C Sayles
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 18:20
CPC Classifications
C; C06; C06B; C06B23/00; C06B23/007
Claims Analysis
Total Claims: 0
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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) | 1975-07-18 | 1976-01-17 | 1976-07-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-07-18 | 1980-01-17 | 1980-07-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-07-18 | 1984-01-17 | 1984-07-18 | $7700.00 | Window Closed / Lapsed |