Patent US2479945A successfully refreshed from Google Patents.
US2479945A
Expired / Lapsed
US
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Screen with adjustable longitudinal partition
Assignee: Allis Chalmers Corp
•
Filing: 1944-09-13
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Granted: 1949-08-23
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Expires: 1964-09-13
Abstract
No abstract record available.
Inventors
- 👤 Ora L Lincoln
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 19:47
CPC Classifications
B; B07; B07B; B07B1/00; B07B1/46
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US161147A
Cited
US444252A
Cited
US924358A
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US1136293A
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US2052004A
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US2068413A
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US2090767A
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US2115110A
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US2310736A
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US2298153A
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US2334707A
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US2338523A
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US2378463A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-08-22 | 1953-02-21 | 1953-08-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-08-22 | 1957-02-21 | 1957-08-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-08-22 | 1961-02-21 | 1961-08-23 | $7700.00 | Window Closed / Lapsed |