Patent US2456237A successfully refreshed from Google Patents.
US2456237A
Expired / Lapsed
US
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Tractor mounted implement
Assignee: International Motors LLC
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Filing: 1945-02-19
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Granted: 1948-12-14
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Expires: 1965-02-19
Abstract
No abstract record available.
Inventors
- 👤 Russel D Acton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 07:06
CPC Classifications
A; A01; A01D; A01D41/00; A01D41/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US558627A
Cited
USRE22279E
Cited
US1699251A
Cited
US1592962A
Cited
US1755524A
Cited
US2358513A
Cited
US2363897A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-12-14 | 1952-06-14 | 1952-12-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-12-14 | 1956-06-14 | 1956-12-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-12-14 | 1960-06-14 | 1960-12-14 | $7700.00 | Window Closed / Lapsed |