US1412280A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Aluinum alloy
Assignee: Alcoa Corp
•
Filing: 1920-03-29
•
Granted: 1922-04-11
•
Expires: 1940-03-29
Abstract
No abstract record available.
Inventors
- 👤 Francis C Frary
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 09:49
CPC Classifications
C; C22; C22C; C22C21/00; C22C21/12
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1925-04-10 | 1925-10-10 | 1926-04-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1929-04-10 | 1929-10-10 | 1930-04-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1933-04-10 | 1933-10-10 | 1934-04-11 | $7700.00 | Window Closed / Lapsed |