US2458686A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Extruded shape
Assignee: North American Aviation Corp
•
Filing: 1942-01-31
•
Granted: 1949-01-11
•
Expires: 1962-01-31
Abstract
No abstract record available.
Inventors
- 👤 Jr Robert P Davie
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 03:29
CPC Classifications
B; B21; B21C; B21C37/00; B21C37/02; B21C23/00; B21C23/02; B21C23/04; B21C23/06; B21C23/08; B21C23/10; B21C35/00; B21C35/02; B21C35/023; B64; B64C; B64C3/00; Y; Y10; Y10S; Y10S29/00; Y10S29/047; Y10T; Y10T29/00; Y10T29/49; Y10T29/49616; Y10T29/49622; Y10T428/00; Y10T428/12; Y10T428/12375; Y10T428/12389; Y10T428/12403
Claims Analysis
Total Claims: 0
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-01-11 | 1952-07-12 | 1953-01-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-01-11 | 1956-07-12 | 1957-01-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-01-11 | 1960-07-12 | 1961-01-11 | $7700.00 | Window Closed / Lapsed |