US1348457A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for deoxidizing copper and its alloys
Assignee: Individual
•
Filing: 1920-02-05
•
Granted: 1920-08-03
•
Expires: 1940-02-05
Abstract
No abstract record available.
Inventors
- 👤 Strasser Albert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 10:18
CPC Classifications
C; C22; C22B; C22B9/00; C22B9/10; C22B15/00; C22B15/0026; C22B15/006; C22B9/103
Claims Analysis
Total Claims: 0
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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) | 1923-08-03 | 1924-02-02 | 1924-08-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1927-08-03 | 1928-02-02 | 1928-08-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1931-08-03 | 1932-02-02 | 1932-08-03 | $7700.00 | Window Closed / Lapsed |