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US2814580A
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Heat treated agricultural implement disks having non-directional fracture characteristics
Assignee: International Motors LLC
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Filing: 1955-09-02
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Granted: 1957-11-26
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Expires: 1975-09-02
Abstract
No abstract record available.
Inventors
- 👤 Helen D Hoover
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 08:08
CPC Classifications
A; A01; A01B; A01B15/00; A01B15/16; C; C22; C22B; C22B4/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
53 words
A HEAT TREATED STEEL IMPLEMENT DISK HAVING A PRIMARILY BAINITIC MICROSTRUCTURE, SAID DISK HAVING FIBRE FLOW LINES EXTENDING LINEARLY AND SUBSTANTIALLY PARALLEL THROUGH SAID DISK, SAID DISK HAVING A FRACTUR CHARACTERISTIC WHEREIN DURING FRACTURE THE TEARING OF THE DISK IS IN A VARI-DIRECTIONAL MANNER RELATIVE TO THE FIBRE FLOW LINES OF THE DISK.
Claim 2
Dependent Claim
53 words
A HEAT TREATED STEEL IMPLEMENT DISK HAVING A PRIMARILY BAINITIC MICROSTRUCTURE, SAID DISK HAVING FIBRE FLOW LINES EXTENDING LINEARLY AND SUBSTANTIALLY PARALLEL THROUGH SAID DISK, SAID DISK HAVING A FRACTUR CHARACTERISTIC WHEREIN DURING FRACTURE THE TEARING OF THE DISK IS IN A VARI-DIRECTIONAL MANNER RELATIVE TO THE FIBRE FLOW LINES OF THE DISK.
References Cited (Backward Citations)
US1924099A
Cited
US2395184A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-11-25 | 1961-05-27 | 1961-11-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-11-25 | 1965-05-27 | 1965-11-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-11-25 | 1969-05-27 | 1969-11-26 | $7700.00 | Window Closed / Lapsed |