Patent US2447759A successfully refreshed from Google Patents.
US2447759A
Expired / Lapsed
US
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Open top access refrigerated display case
Assignee: C V Hill & Co Inc
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Filing: 1941-10-20
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Granted: 1948-08-24
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Expires: 1961-10-20
Abstract
No abstract record available.
Inventors
- 👤 Malcolm D Macmaster
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 13:14
CPC Classifications
A; A47; A47F; A47F3/00; A47F3/04; A47F3/0439; A47F3/0443
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US985620A
Cited
US1563577A
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US1959646A
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US1967058A
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US2066013A
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US2120744A
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US2050063A
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US2083442A
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US2219912A
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US2180071A
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US2257247A
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US2222524A
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US2271802A
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US2382937A
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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) | 1951-08-24 | 1952-02-23 | 1952-08-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-08-24 | 1956-02-23 | 1956-08-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-08-24 | 1960-02-23 | 1960-08-24 | $7700.00 | Window Closed / Lapsed |