Patent US2454744A successfully refreshed from Google Patents.
US2454744A
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US
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Assignee: Individual
•
Filing: 1945-06-07
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Granted: 1948-11-23
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Expires: 1965-06-07
Abstract
No abstract record available.
Inventors
- 👤 Anton U Peterson
- 👤 August J Meyer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 17:13
CPC Classifications
B; B25; B25B; B25B1/00; B25B1/24; B25B1/06; B25B1/14; B25B1/2405; B25B1/2431; B25B1/2436; Y; Y10; Y10T; Y10T74/00; Y10T74/20; Y10T74/20207; Y10T74/20372; Y10T74/20384
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
DE104295C
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US234930A
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US457419A
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US486723A
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US557453A
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US1292930A
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US1421065A
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US1577744A
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US1623045A
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US1924742A
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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) | 1951-11-23 | 1952-05-24 | 1952-11-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-11-23 | 1956-05-24 | 1956-11-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-11-23 | 1960-05-24 | 1960-11-23 | $7700.00 | Window Closed / Lapsed |