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US2598016A
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Apparatus for hot pressing powdered metals
Assignee: HPM Development Corp
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Filing: 1950-04-17
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Granted: 1952-05-27
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Expires: 1970-04-17
Abstract
No abstract record available.
Inventors
- 👤 Sr Lloyd D Richardson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 12:57
CPC Classifications
B; B30; B30B; B30B15/00; B30B15/30; B30B15/302; B30B15/304; B22; B22F; B22F3/00; B22F3/12; B22F3/14; B30B15/34
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-05-27 | 1955-11-26 | 1956-05-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-05-27 | 1959-11-26 | 1960-05-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-05-27 | 1963-11-26 | 1964-05-27 | $7700.00 | Window Closed / Lapsed |