US3433158A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Solid propellant grain with surface bonded burning inhibitor composition of hydroxy-terminated polybutadiene
Assignee: United States Department of the Army
•
Filing: 1966-02-10
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Granted: 1969-03-18
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Expires: 1986-02-10
Abstract
No abstract record available.
Inventors
- 👤 Everette M Pierce
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 12:48
CPC Classifications
F; F42; F42B; F42B1/00; C; C06; C06B; C06B45/00; C06B45/04; C06B45/06; C06B45/10; C06B45/12
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3022149A
Cited
US3086895A
Cited
US3215028A
Cited
US3301785A
Cited
US3257248A
Cited
US3177190A
Cited
US3215648A
Cited
US3305523A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-03-17 | 1972-09-16 | 1973-03-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-03-17 | 1976-09-16 | 1977-03-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-03-17 | 1980-09-16 | 1981-03-18 | $7700.00 | Window Closed / Lapsed |