US2747488A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cultivator attachments
Assignee: Individual
•
Filing: 1953-01-14
•
Granted: 1956-05-29
•
Expires: 1973-01-14
Abstract
No abstract record available.
Inventors
- 👤 Norton Eugene
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 05:50
CPC Classifications
A; A01; A01B; A01B39/00; A01B39/02; A01B39/06; A01B39/08
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US301597A
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US425359A
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US528413A
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US1056864A
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US1183840A
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US1244982A
Cited
US1253860A
Cited
US1405086A
Cited
US1506818A
Cited
US2304869A
Cited
US2491153A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-05-29 | 1959-11-28 | 1960-05-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-05-29 | 1963-11-28 | 1964-05-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-05-29 | 1967-11-28 | 1968-05-29 | $7700.00 | Window Closed / Lapsed |