Patent US2620030A successfully refreshed from Google Patents.
US2620030A
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Multicrop tube shear
Assignee: Safway Steel Products Inc
•
Filing: 1950-01-31
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Granted: 1952-12-02
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Expires: 1970-01-31
Abstract
No abstract record available.
Inventors
- 👤 Arvid A Anderson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 10:22
CPC Classifications
B; B21; B21C; B21C37/00; B21C37/06; B21C37/15; B21C37/28; B21C37/29; B21C37/292; Y; Y10; Y10T; Y10T83/00; Y10T83/869; Y10T83/8772; Y10T83/929; Y10T83/9411; Y10T83/9447
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US414287A
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US496167A
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US1044283A
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US1161705A
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FR461561A
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US1138211A
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US1513100A
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US2064539A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-12-02 | 1956-06-02 | 1956-12-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-12-02 | 1960-06-02 | 1960-12-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-12-02 | 1964-06-02 | 1964-12-02 | $7700.00 | Window Closed / Lapsed |