US2738601A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Land-clearing plow attachment
Assignee: Underhaugs Fabrikk AS
•
Filing: 1952-02-05
•
Granted: 1956-03-20
•
Expires: 1972-02-05
Abstract
No abstract record available.
Inventors
- 👤 Skjaerpe Odd
- 👤 Skjaerpe Ragnvald
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 06:46
CPC Classifications
E; E02; E02F; E02F5/00; E02F5/02; E02F5/022; A; A01; A01B; A01B13/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US490420A
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DE373319C
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US836007A
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US1361638A
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US2437176A
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US2465660A
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US2626468A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-03-20 | 1959-09-19 | 1960-03-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-03-20 | 1963-09-19 | 1964-03-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-03-20 | 1967-09-19 | 1968-03-20 | $7700.00 | Window Closed / Lapsed |