Patent US2658447A successfully refreshed from Google Patents.
US2658447A
Expired / Lapsed
US
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Positive cam operated print mechanism
Assignee: Unisys Corp
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Filing: 1949-03-30
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Granted: 1953-11-10
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Expires: 1969-03-30
Abstract
No abstract record available.
Inventors
- 👤 Karl J Braun
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 21:25
CPC Classifications
G; G06; G06K; G06K15/00; G06K15/02; G06K15/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1120679A
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US1579151A
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US1818200A
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US2019901A
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US2039791A
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US2095068A
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US2066784A
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US2178749A
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 |