US2598870A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rail truck
Assignee: Doosan Bobcat North America Inc
•
Filing: 1948-12-08
•
Granted: 1952-06-03
•
Expires: 1968-12-08
Abstract
No abstract record available.
Inventors
- 👤 Alfred O Williams
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 16:15
CPC Classifications
B; B61; B61F; B61F3/00; B61F3/02; B61F3/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2317398A
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US2427635A
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US2319623A
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US2347500A
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US2334073A
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US2296769A
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US2316046A
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US2321845A
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US2336661A
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US2434287A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-06-03 | 1955-12-03 | 1956-06-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-06-03 | 1959-12-03 | 1960-06-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-06-03 | 1963-12-03 | 1964-06-03 | $7700.00 | Window Closed / Lapsed |