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US2548736A
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Assignee: HENRY A TORSTENSON
•
Filing: 1945-11-05
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Granted: 1951-04-10
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Expires: 1965-11-05
Abstract
No abstract record available.
Inventors
- 👤 Kenneth F Morberg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 22:03
CPC Classifications
B; B25; B25C; B25C5/00; B25C5/06; B25C5/10
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1541625A
Cited
US1757812A
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US1905241A
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US2154755A
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US2161449A
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US2265361A
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US2309628A
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US2300277A
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US2311412A
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US2314847A
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US2314848A
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US2268102A
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US2310529A
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US2337479A
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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) | 1954-04-09 | 1954-10-09 | 1955-04-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-04-09 | 1958-10-09 | 1959-04-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-04-09 | 1962-10-09 | 1963-04-10 | $7700.00 | Window Closed / Lapsed |