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US2940531A
Expired / Lapsed
US
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Tongue for farm implement
Assignee: Individual
•
Filing: 1956-10-19
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Granted: 1960-06-14
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Expires: 1976-10-19
Abstract
No abstract record available.
Inventors
- 👤 Emerson J Schaap
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 05:13
CPC Classifications
A; A01; A01B; A01B17/00; A01B17/004
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US941740A
Cited
US1074208A
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US1463243A
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US1552306A
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US1679628A
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US2330302A
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US2615291A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-06-14 | 1963-12-14 | 1964-06-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-06-14 | 1967-12-14 | 1968-06-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-06-14 | 1971-12-14 | 1972-06-14 | $7700.00 | Window Closed / Lapsed |