US2620031A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Shearing machine
Assignee: ZF International UK Ltd
•
Filing: 1950-02-06
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Granted: 1952-12-02
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Expires: 1970-02-06
Abstract
No abstract record available.
Inventors
- 👤 Swift William
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 20:04
CPC Classifications
B; B21; B21F; B21F11/00; Y; Y10; Y10T; Y10T83/00; Y10T83/384; Y10T83/395; Y10T83/40; Y10T83/401; Y10T83/402; Y10T83/626; Y10T83/637; Y10T83/869; Y10T83/8821; Y10T83/8841; Y10T83/8843
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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 |