Patent US2471083A successfully refreshed from Google Patents.
US2471083A
Expired / Lapsed
US
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Means for bending straight strips into annular collars or flanges between a disk and oscillating rollers
Assignee: Individual
•
Filing: 1947-11-21
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Granted: 1949-05-24
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Expires: 1967-11-21
Abstract
No abstract record available.
Inventors
- 👤 Tuttle Arvin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 08:23
CPC Classifications
B; B21; B21D; B21D7/00; B21D7/02; B21D7/022
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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FR482204A
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GB116569A
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GB123197A
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FR522689A
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US1903799A
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US1836502A
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US1993970A
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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) | 1952-05-23 | 1952-11-22 | 1953-05-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-05-23 | 1956-11-22 | 1957-05-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-05-23 | 1960-11-22 | 1961-05-24 | $7700.00 | Window Closed / Lapsed |