Patent US2687074A successfully refreshed from Google Patents.
US2687074A
Expired / Lapsed
US
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Tool mounting for agricultural implements
Assignee: Allis Chalmers Corp
•
Filing: 1948-10-27
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Granted: 1954-08-24
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Expires: 1968-10-27
Abstract
No abstract record available.
Inventors
- 👤 Willard H Tanke
- 👤 August G Buhr
- 👤 John J Groth
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 15:33
CPC Classifications
A; A01; A01B; A01B35/00; A01B35/20; A01B35/22
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US220571A
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US697058A
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US1375854A
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FR35027E
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US1546495A
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US2152891A
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US2150665A
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US2223375A
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US2302842A
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US2388981A
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US2375970A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-08-23 | 1958-02-22 | 1958-08-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-08-23 | 1962-02-22 | 1962-08-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-08-23 | 1966-02-22 | 1966-08-24 | $7700.00 | Window Closed / Lapsed |