US2618212A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tractor hitched plow
Assignee: Case LLC
•
Filing: 1944-07-19
•
Granted: 1952-11-18
•
Expires: 1964-07-19
Abstract
No abstract record available.
Inventors
- 👤 Milton T Hedquist
- 👤 David D Mayhew
- 👤 Sampel Achiel Van De
- 👤 Arthur J Whalen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 16:52
CPC Classifications
A; A01; A01B; A01B3/00; A01B3/36; A01B3/38
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1043246A
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US1526972A
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US1378842A
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US1745472A
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US1786591A
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US1831997A
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US2179526A
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US2222115A
Cited
US2354084A
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US2357847A
Cited
US2438625A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-11-18 | 1956-05-19 | 1956-11-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-11-18 | 1960-05-19 | 1960-11-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-11-18 | 1964-05-19 | 1964-11-18 | $7700.00 | Window Closed / Lapsed |