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US2447434A
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Method of compacting metal powder into complicated shapes
Assignee: American Electro Metal Corp
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Filing: 1944-06-06
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Granted: 1948-08-17
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Expires: 1964-06-06
Abstract
No abstract record available.
Inventors
- 👤 Schwarzkopf Paul
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 13:13
CPC Classifications
B; B22; B22F; B22F5/00; B22F5/08; Y; Y10; Y10S; Y10S29/00; Y10S29/029; Y10S425/00; Y10S425/019; Y10T; Y10T74/00; Y10T74/19; Y10T74/1987; Y10T74/19949; Y10T74/19963
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1226470A
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US1321125A
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US1609460A
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US2313227A
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US2299192A
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US2331909A
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US2360528A
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US2319373A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-08-17 | 1952-02-16 | 1952-08-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-08-17 | 1956-02-16 | 1956-08-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-08-17 | 1960-02-16 | 1960-08-17 | $7700.00 | Window Closed / Lapsed |