US3492153A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Silicon carbide-aluminum nitride refractory composite
Assignee: Boeing North American Inc
•
Filing: 1964-09-03
•
Granted: 1970-01-27
•
Expires: 1984-09-03
Abstract
No abstract record available.
Inventors
- 👤 Guy Ervin Jr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 19:41
CPC Classifications
C; C04; C04B; C04B41/00; C04B41/009; C04B35/00; C04B35/515; C04B35/52; C04B35/56; C04B41/45; C04B41/50; C04B41/5053; C04B41/5062; C04B41/5063; C04B41/80; C04B41/81; C04B41/85; C04B41/87; Y; Y10; Y10T; Y10T428/00; Y10T428/249921; Y10T428/249953; Y10T428/249955; Y10T428/249956; Y10T428/249957; Y10T428/249967; Y10T428/249969
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US2406275A
Cited
US2445296A
Cited
US2412376A
Cited
US2412375A
Cited
US2636825A
Cited
US2839413A
Cited
US3084060A
Cited
US3259509A
Cited
US3305372A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-01-26 | 1973-07-28 | 1974-01-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-01-26 | 1977-07-28 | 1978-01-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-01-26 | 1981-07-28 | 1982-01-27 | $7700.00 | Window Closed / Lapsed |