US2512055A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Safety load limiting means for hoists and the like
Assignee: W C DILLON AND CO Inc
•
Filing: 1947-06-04
•
Granted: 1950-06-20
•
Expires: 1967-06-04
Abstract
No abstract record available.
Inventors
- 👤 Ralph R Dillon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 20:50
CPC Classifications
B; B66; B66D; B66D1/00; B66D1/54; B66D1/58
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US829371A
Cited
US1527555A
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US1890539A
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US2386487A
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US2374450A
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US2411139A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-06-19 | 1953-12-19 | 1954-06-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-06-19 | 1957-12-19 | 1958-06-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-06-19 | 1961-12-19 | 1962-06-20 | $7700.00 | Window Closed / Lapsed |