US3046874A
Expired / Lapsed
US
⏱️ 0.0 years remaining
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Assignee: Cleveland Crane and Engineering Co
•
Filing: 1960-03-21
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Granted: 1962-07-31
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Expires: 1980-03-21
Abstract
No abstract record available.
Inventors
- 👤 Roy F Dehn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 00:26
CPC Classifications
B; B30; B30B; B30B15/00; B30B15/16; B30B15/18; Y; Y10; Y10T; Y10T83/00; Y10T83/869; Y10T83/8691; Y10T83/8693
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US403734A
Cited
FR887292A
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US939732A
Cited
US1791757A
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US1911138A
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US2483712A
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CH288537A
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US2793584A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-07-30 | 1966-01-29 | 1966-07-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-07-30 | 1970-01-29 | 1970-07-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-07-30 | 1974-01-29 | 1974-07-31 | $7700.00 | Window Closed / Lapsed |