Patent US2533756A successfully refreshed from Google Patents.
US2533756A
Expired / Lapsed
US
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Machine for beveling notches in coulter disks
Assignee: International Motors LLC
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Filing: 1948-10-05
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Granted: 1950-12-12
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Expires: 1968-10-05
Abstract
No abstract record available.
Inventors
- 👤 Fred W Barbknecht
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 12:19
CPC Classifications
B; B23; B23C; B23C3/00; Y; Y10; Y10T; Y10T29/00; Y10T29/27; Y10T409/00; Y10T409/30; Y10T409/306664; Y10T409/306776
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US120433A
Cited
US1352324A
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US1487589A
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US1635491A
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US2082832A
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US2353131A
Cited
US2401486A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-12-11 | 1954-06-12 | 1954-12-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-12-11 | 1958-06-12 | 1958-12-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-12-11 | 1962-06-12 | 1962-12-12 | $7700.00 | Window Closed / Lapsed |