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US2419261A
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Assignee: Individual
•
Filing: 1944-06-03
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Granted: 1947-04-22
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Expires: 1964-06-03
Abstract
No abstract record available.
Inventors
- 👤 Groetchen Richard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 23:38
CPC Classifications
A; A47; A47J; A47J37/00; A47J37/04; A47J37/046
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US600373A
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USRE19685E
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US2099788A
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US814540A
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US1393288A
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US1543212A
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US1599556A
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US1731743A
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US1631655A
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US1719713A
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US2040016A
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US2372362A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1950-04-21 | 1950-10-21 | 1951-04-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-04-21 | 1954-10-21 | 1955-04-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-04-21 | 1958-10-21 | 1959-04-22 | $7700.00 | Window Closed / Lapsed |