US2444719A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for contouring elongated metal stock while under tension
Assignee: Individual
•
Filing: 1946-10-05
•
Granted: 1948-07-06
•
Expires: 1966-10-05
Abstract
No abstract record available.
Inventors
- 👤 Cyril J Bath
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 03:53
CPC Classifications
B; B21; B21D; B21D11/00; B21D11/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US898424A
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US983664A
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US1354770A
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GB190361A
Cited
DE494702C
Cited
US1968010A
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US2190821A
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US2275619A
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US2331294A
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US2411801A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-07-06 | 1952-01-05 | 1952-07-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-07-06 | 1956-01-05 | 1956-07-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-07-06 | 1960-01-05 | 1960-07-06 | $7700.00 | Window Closed / Lapsed |