Patent US2808307A successfully refreshed from Google Patents.
US2808307A
Expired / Lapsed
US
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Insulated filing cabinet construction
Assignee: Diebold Nixdorf Inc
•
Filing: 1953-08-20
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Granted: 1957-10-01
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Expires: 1973-08-20
Abstract
No abstract record available.
Inventors
- 👤 Cecil C Heilman
- 👤 Carl D Graber
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 10:57
CPC Classifications
A; A47; A47B; A47B63/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US809497A
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US1207066A
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US1178612A
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US1723753A
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US1851192A
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US2333511A
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US2412904A
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US2547463A
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US2613623A
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US2658101A
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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) | 1960-09-30 | 1961-04-01 | 1961-10-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-09-30 | 1965-04-01 | 1965-10-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-09-30 | 1969-04-01 | 1969-10-01 | $7700.00 | Window Closed / Lapsed |