Patent US2565174A successfully refreshed from Google Patents.
US2565174A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Automatic sandwich grill
Assignee: Individual
•
Filing: 1947-04-15
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Granted: 1951-08-21
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Expires: 1967-04-15
Abstract
No abstract record available.
Inventors
- 👤 Walter S Fredenhagen
- 👤 Mark S Schmidt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 08:58
CPC Classifications
A; A47; A47J; A47J37/00; A47J37/04; A47J37/044
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1443242A
Cited
GB175376A
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US1440643A
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US1536538A
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US1696613A
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US2097471A
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US2112309A
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US2147335A
Cited
US2182229A
Cited
US2238309A
Cited
US2225068A
Cited
US2453385A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-08-20 | 1955-02-19 | 1955-08-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-08-20 | 1959-02-19 | 1959-08-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-08-20 | 1963-02-19 | 1963-08-21 | $7700.00 | Window Closed / Lapsed |