US2455122A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Windrow device
Assignee: Case LLC
•
Filing: 1945-01-22
•
Granted: 1948-11-30
•
Expires: 1965-01-22
Abstract
No abstract record available.
Inventors
- 👤 Charles W Hansen
- 👤 Frank N G Kranick
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 13:54
CPC Classifications
A; A01; A01D; A01D57/00; A01D57/20
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1090246A
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US1045338A
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US1148644A
Cited
US1214242A
Cited
US1271845A
Cited
US1278102A
Cited
US2048940A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-11-30 | 1952-05-31 | 1952-11-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-11-30 | 1956-05-31 | 1956-11-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-11-30 | 1960-05-31 | 1960-11-30 | $7700.00 | Window Closed / Lapsed |