Patent US2204953A successfully refreshed from Google Patents.
US2204953A
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US
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Resilient car wheel
Assignee: National Malleable and Steel Castings Co
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Filing: 1937-01-11
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Granted: 1940-06-18
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Expires: 1957-01-11
Abstract
No abstract record available.
Inventors
- 👤 Russell J Wittmer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 13:26
CPC Classifications
B; B60; B60B; B60B17/00; B60B17/0027; B60B17/0031; B60B17/0034; B60B17/0041
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1943-06-18 | 1943-12-18 | 1944-06-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1947-06-18 | 1947-12-18 | 1948-06-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1951-06-18 | 1951-12-18 | 1952-06-18 | $7700.00 | Window Closed / Lapsed |