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Patent US2658446A successfully refreshed from Google Patents.
US2658446A
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US
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Assignee: —
•
Filing: —
•
Granted: 1953-11-10
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Expires: 1970-11-10
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 20:13
CPC Classifications
B; B41; B41K; B41K3/00; B41K3/02; B41K3/04; G; G07; G07B; G07B1/00; G07B1/02; G07B17/00; G07B17/00459; G07B17/00508; G07F; G07F17/00; G07F17/42
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US436319A
Cited
US1745242A
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US1746516A
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US2239060A
Cited
US2290871A
Cited
US2325054A
Cited
US2342082A
Cited
US2361626A
Cited
US1069192A
Cited
US2364345A
Cited
US2578830A
Cited
US2559455A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-11-09 | 1957-05-11 | 1957-11-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-11-09 | 1961-05-11 | 1961-11-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-11-09 | 1965-05-11 | 1965-11-10 | $7700.00 | Window Closed / Lapsed |