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US2831706A
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Book or desk file and covers
Assignee: Smead Manufacturing Co
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Filing: 1954-08-20
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Granted: 1958-04-22
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Expires: 1974-08-20
Abstract
No abstract record available.
Inventors
- 👤 Carl J Miller
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 15:09
CPC Classifications
B; B42; B42F; B42F5/00; Y; Y10; Y10S; Y10S156/00; Y10S156/908; Y10S412/00; Y10S412/902; Y10T; Y10T156/00; Y10T156/10; Y10T156/1002; Y10T156/1007; Y10T156/1016; Y10T156/1034; Y10T156/1051
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US478617A
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US496992A
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US1074805A
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US1218557A
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US2478132A
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US2701222A
Cited
DE900451C
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FR1041118A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-04-21 | 1961-10-21 | 1962-04-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-04-21 | 1965-10-21 | 1966-04-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-04-21 | 1969-10-21 | 1970-04-22 | $7700.00 | Window Closed / Lapsed |