US2772550A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Shaft and shield assembly
Assignee: Deere and Co
•
Filing: 1955-09-02
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Granted: 1956-12-04
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Expires: 1975-09-02
Abstract
No abstract record available.
Inventors
- 👤 Roy E Harrington
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 15:53
CPC Classifications
A; A01; A01B; A01B71/00; A01B71/08; F; F16; F16D; F16D3/00; F16D3/84; F16D3/841; Y; Y10; Y10T; Y10T403/00; Y10T403/32; Y10T403/32254; Y10T403/32426; Y10T403/32467; Y10T403/32475; Y10T403/32508; Y10T403/50
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-12-04 | 1960-06-04 | 1960-12-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-12-04 | 1964-06-04 | 1964-12-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-12-04 | 1968-06-04 | 1968-12-04 | $7700.00 | Window Closed / Lapsed |