US2955709A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hot extrusion of metals
Assignee: Cefilac SA
•
Filing: 1953-06-10
•
Granted: 1960-10-11
•
Expires: 1973-06-10
Abstract
No abstract record available.
Inventors
- 👤 Sejournet Jacques
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 10:39
CPC Classifications
B; B21; B21C; B21C25/00; B21C25/04; B21C33/00; B21C33/006; Y; Y10; Y10S; Y10S428/00; Y10S428/922; Y10S428/9335; Y10S428/939; Y10S428/94
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
GB336803A
Cited
US2002641A
Cited
US2023498A
Cited
US2452628A
Cited
US2452636A
Cited
US2431853A
Cited
US2630623A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-10-11 | 1964-04-11 | 1964-10-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-10-11 | 1968-04-11 | 1968-10-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-10-11 | 1972-04-11 | 1972-10-11 | $7700.00 | Window Closed / Lapsed |