US3501357A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Composite propellants containing block copolymers
Assignee: Asahi Kasei Corp
•
Filing: 1968-04-01
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Granted: 1970-03-17
•
Expires: 1988-04-01
Abstract
No abstract record available.
Inventors
- 👤 Kenichi Suzuki
- 👤 Saburo Minekawa
- 👤 Koretaka Yamaguchi
- 👤 Kazuo Toyomoto
- 👤 Einosuke Fujimoto
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 02:01
CPC Classifications
C; C10; C10L; C10L5/00; C10L5/40; C08; C08L; C08L53/00; C08L53/02; C10L5/02; C10L5/04; Y; Y02; Y02E; Y02E50/00; Y02E50/30
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3030346A
Cited
US3265765A
Cited
US3305523A
Cited
US3293289A
Cited
US3238173A
Cited
US3242021A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-03-16 | 1973-09-15 | 1974-03-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-03-16 | 1977-09-15 | 1978-03-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-03-16 | 1981-09-15 | 1982-03-17 | $7700.00 | Window Closed / Lapsed |