Patent US2632371A successfully refreshed from Google Patents.
US2632371A
Expired / Lapsed
US
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Cultivator
Assignee: Individual
•
Filing: 1947-07-05
•
Granted: 1953-03-24
•
Expires: 1967-07-05
Abstract
No abstract record available.
Inventors
- 👤 Henry S Shoemaker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 13:26
CPC Classifications
A; A01; A01B; A01B35/00; A01B35/20; A01B35/22
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US456318A
Cited
US902279A
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US983450A
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US1122837A
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US1244982A
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US1690525A
Cited
US1746606A
Cited
US1946664A
Cited
US2239387A
Cited
US2413467A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-03-23 | 1956-09-22 | 1957-03-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-03-23 | 1960-09-22 | 1961-03-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-03-23 | 1964-09-22 | 1965-03-24 | $7700.00 | Window Closed / Lapsed |