US2447368A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Snubber
Assignee: American Steel Foundries
•
Filing: 1944-02-07
•
Granted: 1948-08-17
•
Expires: 1964-02-07
Abstract
No abstract record available.
Inventors
- 👤 Jr Walter L Schlegel
- 👤 Fred E Bachman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 23:57
CPC Classifications
B; B61; B61F; B61F5/00; B61F5/02; B61F5/04; B61F5/12; B61F5/122; F; F16; F16F; F16F7/00; F16F7/08
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1195434A
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US1396896A
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US1809908A
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US2004829A
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US2110004A
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Cited
US2201191A
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US2265392A
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US2233396A
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US2373508A
Cited
US2381404A
Cited
US2379626A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-08-17 | 1952-02-16 | 1952-08-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-08-17 | 1956-02-16 | 1956-08-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-08-17 | 1960-02-16 | 1960-08-17 | $7700.00 | Window Closed / Lapsed |