US2611301A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Direct mounted two-way plow
Assignee: MASSEY HARRIS CO Ltd
•
Filing: 1948-07-08
•
Granted: 1952-09-23
•
Expires: 1968-07-08
Abstract
No abstract record available.
Inventors
- 👤 Ego George Ross
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 15:14
CPC Classifications
A; A01; A01B; A01B3/00; A01B3/36; A01B3/40; A01B3/42; A01B3/421
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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FR22498E
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GB163473A
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GB189998A
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FR614838A
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FR32391E
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US1800284A
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FR667724A
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US1811733A
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FR682483A
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US1892485A
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US2079595A
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US2153824A
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US2227366A
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US2271533A
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US2354084A
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US2364367A
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US2420530A
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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) | 1955-09-23 | 1956-03-24 | 1956-09-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-09-23 | 1960-03-24 | 1960-09-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-09-23 | 1964-03-24 | 1964-09-23 | $7700.00 | Window Closed / Lapsed |