Patent US2540249A successfully refreshed from Google Patents.
US2540249A
Expired / Lapsed
US
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Grain tank attachment
Assignee: International Motors LLC
•
Filing: 1946-05-31
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Granted: 1951-02-06
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Expires: 1966-05-31
Abstract
No abstract record available.
Inventors
- 👤 Clarence C Evers
- 👤 Rexford D Downing
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 19:55
CPC Classifications
A; A01; A01D; A01D41/00; A01D41/12; A01D41/1208; Y; Y10; Y10S; Y10S56/00; Y10S56/09
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1300188A
Cited
US1594535A
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US2012262A
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US2049132A
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US2080957A
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US2227886A
Cited
US2212465A
Cited
US2292958A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-02-05 | 1954-08-07 | 1955-02-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-02-05 | 1958-08-07 | 1959-02-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-02-05 | 1962-08-07 | 1963-02-06 | $7700.00 | Window Closed / Lapsed |