Patent US2490738A successfully refreshed from Google Patents.
US2490738A
Expired / Lapsed
US
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Snubber
Assignee: American Steel Foundries
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Filing: 1945-06-15
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Granted: 1949-12-06
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Expires: 1965-06-15
Abstract
No abstract record available.
Inventors
- 👤 Leo A Lehrman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 18:18
CPC Classifications
B; B61; B61F; B61F5/00; B61F5/02; B61F5/04; B61F5/12; B61F5/122
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
DE552698C
Cited
US736724A
Cited
US1008670A
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US1136022A
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US1169862A
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US2198261A
Cited
US2379078A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-12-05 | 1953-06-06 | 1953-12-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-12-05 | 1957-06-06 | 1957-12-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-12-05 | 1961-06-06 | 1961-12-06 | $7700.00 | Window Closed / Lapsed |