Patent US1626870A successfully refreshed from Google Patents.
Patent US1873671A successfully refreshed from Google Patents.
US1873671A
Expired / Lapsed
US
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Yielding release for crusher bowls
Assignee: Nordberg Manufacturing Co
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Filing: 1931-08-05
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Granted: 1932-08-23
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Expires: 1951-08-05
Abstract
No abstract record available.
Inventors
- 👤 Edgar B Symons
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 20:19
CPC Classifications
B; B02; B02C; B02C2/00; B02C2/02; B02C2/04; B02C2/045
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1935-08-23 | 1936-02-22 | 1936-08-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1939-08-23 | 1940-02-22 | 1940-08-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1943-08-23 | 1944-02-22 | 1944-08-23 | $7700.00 | Window Closed / Lapsed |