Patent US1920234A successfully refreshed from Google Patents.
US1920234A
Expired / Lapsed
US
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Method of producing aluminum bronze powder and lubricants therefor
Assignee: Alcoa Corp
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Filing: 1932-05-13
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Granted: 1933-08-01
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Expires: 1952-05-13
Abstract
No abstract record available.
Inventors
- 👤 Furman C Arthur
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 09:23
CPC Classifications
B; B22; B22F; B22F9/00; B22F9/02; B22F9/04; B22F1/00; B22F1/06; B22F1/10; B22F2998/00
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) | 1936-07-31 | 1937-01-30 | 1937-08-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1940-07-31 | 1941-01-30 | 1941-08-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1944-07-31 | 1945-01-30 | 1945-08-01 | $7700.00 | Window Closed / Lapsed |