US2798388A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for deforming, especially upsetting or stretching, sheets or profiles
Assignee: Individual
•
Filing: 1954-05-12
•
Granted: 1957-07-09
•
Expires: 1974-05-12
Abstract
No abstract record available.
Inventors
- 👤 Eckold Walter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 17:02
CPC Classifications
B; B21; B21D; B21D11/00; B21D11/08; B21D11/085
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1464434A
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US1809168A
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US2010996A
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US2407573A
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US2357204A
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US2364938A
Cited
US2425913A
Cited
US2649820A
Cited
US2699079A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-07-08 | 1961-01-07 | 1961-07-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-07-08 | 1965-01-07 | 1965-07-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-07-08 | 1969-01-07 | 1969-07-09 | $7700.00 | Window Closed / Lapsed |