Patent US2856216A successfully refreshed from Google Patents.
US2856216A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Joint
Assignee: Deere and Co
•
Filing: 1954-11-08
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Granted: 1958-10-14
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Expires: 1974-11-08
Abstract
No abstract record available.
Inventors
- 👤 Homer D Witzel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 11:27
CPC Classifications
F; F16; F16F; F16F1/00; F16F1/36; F16F1/38; F16F1/3863; Y; Y10; Y10T; Y10T403/00; Y10T403/45; Y10T403/455; Y10T403/71; Y10T403/7194
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) | 1961-10-13 | 1962-04-14 | 1962-10-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-10-13 | 1966-04-14 | 1966-10-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-10-13 | 1970-04-14 | 1970-10-14 | $7700.00 | Window Closed / Lapsed |