Patent US2448483A successfully refreshed from Google Patents.
US2448483A
Expired / Lapsed
US
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Method of manufacturing valves
Assignee: Crane Co
•
Filing: 1944-01-26
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Granted: 1948-08-31
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Expires: 1964-01-26
Abstract
No abstract record available.
Inventors
- 👤 Charles H Bassett
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 13:14
CPC Classifications
F; F16; F16K; F16K27/00; F16K27/06; F16K27/067
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US117704A
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US934614A
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US1043065A
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US1584600A
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US1888207A
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FR676093A
Cited
US1906266A
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US2032623A
Cited
US1973418A
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US2312579A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-08-31 | 1952-03-01 | 1952-08-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-08-31 | 1956-03-01 | 1956-08-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-08-31 | 1960-03-01 | 1960-08-31 | $7700.00 | Window Closed / Lapsed |