Patent US2597046A successfully refreshed from Google Patents.
US2597046A
Expired / Lapsed
US
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Method of producing tubular and sheet metals
Assignee: Individual
•
Filing: 1948-06-25
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Granted: 1952-05-20
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Expires: 1968-06-25
Abstract
No abstract record available.
Inventors
- 👤 Sendzimir Tadeusz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 23:14
CPC Classifications
B; B22; B22D; B22D11/00; B22D11/06; B22D11/0622; B22D11/006; B22D11/14; B22D11/141
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1822256A
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US2108753A
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US2075394A
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US2130202A
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US2225373A
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US2285740A
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US2301027A
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US2187720A
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US2290083A
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US2376518A
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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) | 1955-05-20 | 1955-11-19 | 1956-05-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-05-20 | 1959-11-19 | 1960-05-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-05-20 | 1963-11-19 | 1964-05-20 | $7700.00 | Window Closed / Lapsed |