Patent US2984191A successfully refreshed from Google Patents.
US2984191A
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US
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Hydraulically operated overhead crane
Assignee: Whiting Corp
•
Filing: 1958-10-07
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Granted: 1961-05-16
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Expires: 1978-10-07
Abstract
No abstract record available.
Inventors
- 👤 Fred T Smith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 11:41
CPC Classifications
B; B66; B66C; B66C13/00; B66C2700/00; B66C2700/01; B66C2700/012; B66C2700/017
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1541782A
Cited
US2228411A
Cited
US2601831A
Cited
US2460774A
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US2410603A
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US2529787A
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US2547578A
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US2561167A
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US2598538A
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US2556503A
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US2616265A
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US2678106A
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US2704131A
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US2771958A
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US2833362A
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US2932260A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-05-15 | 1964-11-14 | 1965-05-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-05-15 | 1968-11-14 | 1969-05-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-05-15 | 1972-11-14 | 1973-05-16 | $7700.00 | Window Closed / Lapsed |