US2477970A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Adjustable auger for harvester platforms
Assignee: International Motors LLC
•
Filing: 1947-03-27
•
Granted: 1949-08-02
•
Expires: 1967-03-27
Abstract
No abstract record available.
Inventors
- 👤 Rexford D Downing
- 👤 Elmer O Engvall
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 16:40
CPC Classifications
A; A01; A01D; A01D61/00; A01D61/008
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US902530A
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US2118289A
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US2292934A
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US2290806A
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US2360776A
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GB559431A
Cited
US2390680A
Cited
US2443942A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-08-01 | 1953-01-31 | 1953-08-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-08-01 | 1957-01-31 | 1957-08-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-08-01 | 1961-01-31 | 1961-08-02 | $7700.00 | Window Closed / Lapsed |