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US2637263A
Expired / Lapsed
US
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Two-row implement
Assignee: Individual
•
Filing: 1947-11-07
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Granted: 1953-05-05
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Expires: 1967-11-07
Abstract
No abstract record available.
Inventors
- 👤 Albert A Schmitz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 05:37
CPC Classifications
A; A01; A01C; A01C11/00; A01C11/02; Y; Y10; Y10T; Y10T137/00; Y10T137/8593; Y10T137/86389; Y10T137/86405
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US182569A
Cited
US529492A
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US915546A
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US1475061A
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US1573270A
Cited
US1886457A
Cited
US1807474A
Cited
US2534798A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-05-04 | 1956-11-03 | 1957-05-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-05-04 | 1960-11-03 | 1961-05-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-05-04 | 1964-11-03 | 1965-05-05 | $7700.00 | Window Closed / Lapsed |