Patent US2058698A successfully refreshed from Google Patents.
US2058698A
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Method of and apparatus for forging and shaping metal articles
Assignee: Warren Tool Corp
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Filing: 1934-08-17
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Granted: 1936-10-27
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Expires: 1954-08-17
Abstract
No abstract record available.
Inventors
- 👤 Frederick J Lehman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 22:55
CPC Classifications
B; B21; B21K; B21K5/00; B21K5/12; B21K27/00; B21K27/02; B21K27/04
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) | 1939-10-27 | 1940-04-27 | 1940-10-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1943-10-27 | 1944-04-27 | 1944-10-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1947-10-27 | 1948-04-27 | 1948-10-27 | $7700.00 | Window Closed / Lapsed |