Patent US2606491A successfully refreshed from Google Patents.
US2606491A
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US
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Assignee: Unisys Corp
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Filing: 1948-10-16
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Granted: 1952-08-12
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Expires: 1968-10-16
Abstract
No abstract record available.
Inventors
- 👤 Wockenfuss William
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 20:07
CPC Classifications
G; G06; G06K; G06K15/00; G06K15/02; G06K15/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US578423A
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US732601A
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US1149508A
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US1548954A
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US1607849A
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DE450249C
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US1853211A
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US1978898A
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US2076713A
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US2508593A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-08-12 | 1956-02-11 | 1956-08-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-08-12 | 1960-02-11 | 1960-08-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-08-12 | 1964-02-11 | 1964-08-12 | $7700.00 | Window Closed / Lapsed |