Patent US2352809A successfully refreshed from Google Patents.
US2352809A
Expired / Lapsed
US
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Feed device for powdered material
Assignee: FJ Stokes Machine Co
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Filing: 1942-11-30
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Granted: 1944-07-04
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Expires: 1962-11-30
Abstract
No abstract record available.
Inventors
- 👤 Strauss William
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 20:37
CPC Classifications
B; B65; B65G; B65G65/00; B65G65/30; B65G65/34; B65G65/40; B65G65/48; B65G65/4881; B30; B30B; B30B15/00; B30B15/30; B30B15/302; G; G01; G01F; G01F11/00; G01F11/10; G01F11/12; G01F11/20; G01F11/24
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) | 1947-07-04 | 1948-01-03 | 1948-07-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1951-07-04 | 1952-01-03 | 1952-07-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1955-07-04 | 1956-01-03 | 1956-07-04 | $7700.00 | Window Closed / Lapsed |