US2780158A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Two way disc plough
Assignee: Individual
•
Filing: 1952-12-12
•
Granted: 1957-02-05
•
Expires: 1972-12-12
Abstract
No abstract record available.
Inventors
- 👤 Harry A Pursche
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 03:10
CPC Classifications
A; A01; A01B; A01B5/00; A01B5/04; A01B5/08
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2675749A
Cited
US954950A
Cited
US1615630A
Cited
AU596527A
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US1740841A
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US1757956A
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US2153824A
Cited
US2163832A
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US2202348A
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US2303320A
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US2314041A
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CH254469A
Cited
US2628126A
Cited
US2600359A
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GB645301A
Cited
US2546554A
Cited
US2595277A
Cited
US2648267A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-02-05 | 1960-08-06 | 1961-02-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-02-05 | 1964-08-06 | 1965-02-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-02-05 | 1968-08-06 | 1969-02-05 | $7700.00 | Window Closed / Lapsed |