Patent US2697647A successfully refreshed from Google Patents.
US2697647A
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US
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Rotary card filing cabinet
Assignee: Ferris Manufacturing Co
•
Filing: 1949-06-29
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Granted: 1954-12-21
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Expires: 1969-06-29
Abstract
No abstract record available.
Inventors
- 👤 Stingl Joseph
- 👤 Luckas Henry
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 12:04
CPC Classifications
A; A47; A47B; A47B63/00; A47B63/06; A47B63/065
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1227704A
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US1552290A
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US1842531A
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US1974272A
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US2075051A
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US2530566A
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US2510924A
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US2517678A
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US2575745A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-12-20 | 1958-06-21 | 1958-12-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-12-20 | 1962-06-21 | 1962-12-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-12-20 | 1966-06-21 | 1966-12-21 | $7700.00 | Window Closed / Lapsed |