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US2676706A
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US
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Gyratory sifter
Assignee: Read Standard Corp
•
Filing: 1950-12-05
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Granted: 1954-04-27
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Expires: 1970-12-05
Abstract
No abstract record available.
Inventors
- 👤 Hiram E Temple
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 20:39
CPC Classifications
B; B07; B07B; B07B1/00; B07B1/08
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US595985A
Cited
GB189404338A
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US641986A
Cited
GB189823671A
Cited
US726172A
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US1351760A
Cited
US2020013A
Cited
US2098128A
Cited
US2296293A
Cited
GB550661A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-04-26 | 1957-10-26 | 1958-04-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-04-26 | 1961-10-26 | 1962-04-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-04-26 | 1965-10-26 | 1966-04-27 | $7700.00 | Window Closed / Lapsed |