Patent US2509950A successfully refreshed from Google Patents.
US2509950A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hoist for loading heavy tractor tires
Assignee: Individual
•
Filing: 1948-01-20
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Granted: 1950-05-30
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Expires: 1968-01-20
Abstract
No abstract record available.
Inventors
- 👤 Zierke Vernon Paul
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 20:50
CPC Classifications
B; B66; B66F; B66F9/00; B66F9/02; B60; B60P; B60P1/00; B60P1/54; B60P1/5404; B60P1/5423; B60P1/5433; B66C; B66C23/00; B66C23/18; B66C23/36; B66C23/44
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-05-29 | 1953-11-28 | 1954-05-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-05-29 | 1957-11-28 | 1958-05-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-05-29 | 1961-11-28 | 1962-05-30 | $7700.00 | Window Closed / Lapsed |