Patent US2525663A successfully refreshed from Google Patents.
US2525663A
Expired / Lapsed
US
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Material-tumbling assembly
Assignee: United States Stoneware Co
•
Filing: 1947-09-27
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Granted: 1950-10-10
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Expires: 1967-09-27
Abstract
No abstract record available.
Inventors
- 👤 Eugene R Frye
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 05:04
CPC Classifications
B; B02; B02C; B02C17/00; B02C17/14; B24; B24B; B24B31/00; B24B31/02
Claims Analysis
Total Claims: 0
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-10-09 | 1954-04-10 | 1954-10-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-10-09 | 1958-04-10 | 1958-10-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-10-09 | 1962-04-10 | 1962-10-10 | $7700.00 | Window Closed / Lapsed |