US1992325A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process of normalizing ternary and multiple alloys forming solid solutions
Assignee: VER DEUTSCHE METALLWERKE AG ZW
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Filing: 1931-10-22
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Granted: 1935-02-26
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Expires: 1951-10-22
Abstract
No abstract record available.
Inventors
- 👤 Schaarwachter Carl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 15:35
CPC Classifications
C; C22; C22F; C22F1/00
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) | 1938-02-25 | 1938-08-27 | 1939-02-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1942-02-25 | 1942-08-27 | 1943-02-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1946-02-25 | 1946-08-27 | 1947-02-26 | $7700.00 | Window Closed / Lapsed |