Patent US2472247A successfully refreshed from Google Patents.
US2472247A
Expired / Lapsed
US
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Fast-setting compound of resin and powdered metal
Assignee: Crane Packing Co
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Filing: 1945-05-31
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Granted: 1949-06-07
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Expires: 1965-05-31
Abstract
No abstract record available.
Inventors
- 👤 Edwin J Coleman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 17:04
CPC Classifications
F; F16; F16J; F16J15/00; F16J15/16; F16J15/26; F16C; F16C33/00; F16C33/02; F16C33/04; F16C33/20
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-06-06 | 1952-12-06 | 1953-06-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-06-06 | 1956-12-06 | 1957-06-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-06-06 | 1960-12-06 | 1961-06-07 | $7700.00 | Window Closed / Lapsed |