Patent US2546386A successfully refreshed from Google Patents.
Patent US2638235A successfully refreshed from Google Patents.
US2638235A
Expired / Lapsed
US
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Loading mechanism for offset tractors
Assignee: Individual
•
Filing: 1949-12-21
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Granted: 1953-05-12
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Expires: 1969-12-21
Abstract
No abstract record available.
Inventors
- 👤 Stephen S Pokorny
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 19:11
CPC Classifications
E; E02; E02F; E02F3/00; E02F3/04; E02F3/28; E02F3/283; E02F3/286; E02F3/627; E02F3/6276
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2398585A
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US2416893A
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US2468602A
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US2531993A
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US2520451A
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US2501112A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-05-11 | 1956-11-10 | 1957-05-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-05-11 | 1960-11-10 | 1961-05-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-05-11 | 1964-11-10 | 1965-05-12 | $7700.00 | Window Closed / Lapsed |