US2593977A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Resilient wheel
Assignee: Doosan Bobcat North America Inc
•
Filing: 1946-04-22
•
Granted: 1952-04-22
•
Expires: 1966-04-22
Abstract
No abstract record available.
Inventors
- 👤 Robert J Burrows
- 👤 Alfred O Williams
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 16:45
CPC Classifications
B; B60; B60B; B60B17/00; B60B17/0027; B60B17/0031; B60B17/0034; B60B17/0041; Y; Y10; Y10T; Y10T403/00; Y10T403/40; Y10T403/405; Y10T403/70; Y10T403/7047; Y10T403/7051; Y10T403/7052; Y10T403/7056; Y10T403/7058; Y10T403/7061
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB484890A
Cited
FR426697A
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US1424203A
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US1969193A
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US2188271A
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US2328660A
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US2151831A
Cited
US2290661A
Cited
US2270622A
Cited
US2396029A
Cited
US2460631A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-04-22 | 1955-10-22 | 1956-04-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-04-22 | 1959-10-22 | 1960-04-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-04-22 | 1963-10-22 | 1964-04-22 | $7700.00 | Window Closed / Lapsed |