US2574848A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Feather drying system
Assignee: Individual
•
Filing: 1946-05-18
•
Granted: 1951-11-13
•
Expires: 1966-05-18
Abstract
No abstract record available.
Inventors
- 👤 Arthur M Schroeder
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 18:09
CPC Classifications
F; F26; F26B; F26B17/00; F26B17/10; F26B17/101
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1986301A
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US1800493A
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US1724541A
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US1934410A
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US1942868A
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US1945296A
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US2363281A
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US2347431A
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US2435927A
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US2437196A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-11-12 | 1955-05-14 | 1955-11-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-11-12 | 1959-05-14 | 1959-11-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-11-12 | 1963-05-14 | 1963-11-13 | $7700.00 | Window Closed / Lapsed |