US2617352A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Automatic coffee brewer and valve structure employed therein
Assignee: Individual
•
Filing: 1950-04-10
•
Granted: 1952-11-11
•
Expires: 1970-04-10
Abstract
No abstract record available.
Inventors
- 👤 Hans A Olson
- 👤 Christina O C Olson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 21:59
CPC Classifications
A; A47; A47J; A47J31/00; A47J31/04; A47J31/057
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US996305A
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US1290546A
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US1457037A
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US1506712A
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GB279110A
Cited
US1803232A
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US2065149A
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US2181246A
Cited
US2313112A
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US2288240A
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US2366384A
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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) | 1955-11-11 | 1956-05-12 | 1956-11-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-11-11 | 1960-05-12 | 1960-11-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-11-11 | 1964-05-12 | 1964-11-11 | $7700.00 | Window Closed / Lapsed |