Patent US2674037A successfully refreshed from Google Patents.
US2674037A
Expired / Lapsed
US
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Assignee: Individual
•
Filing: 1951-01-04
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Granted: 1954-04-06
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Expires: 1971-01-04
Abstract
No abstract record available.
Inventors
- 👤 Swenson Victor
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 23:11
CPC Classifications
B; B26; B26B; B26B19/00; B26B19/14; B26B19/16
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1543387A
Cited
US1843720A
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US2055517A
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US2052495A
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US2086716A
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US2245917A
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US2247661A
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US2265281A
Cited
US2332405A
Cited
US2323659A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-04-05 | 1957-10-05 | 1958-04-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-04-05 | 1961-10-05 | 1962-04-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-04-05 | 1965-10-05 | 1966-04-06 | $7700.00 | Window Closed / Lapsed |