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US2889468A
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Assignee: Unisys Corp
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Filing: 1955-03-14
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Granted: 1959-06-02
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Expires: 1975-03-14
Abstract
No abstract record available.
Inventors
- 👤 Robert L Crosby
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 11:25
CPC Classifications
H; H03; H03K; H03K3/00; H03K3/01; H03K3/012; H03K23/00; H03K23/40; H03K23/50; H03K3/02; H03K3/26; H03K3/28
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB584422A
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US2536808A
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US2731201A
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US2595208A
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US2662983A
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US2831983A
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US2644897A
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US2718613A
Cited
US2771551A
Cited
US2771550A
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FR1098225A
Cited
US2724061A
Cited
US2820153A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-06-01 | 1962-12-01 | 1963-06-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-06-01 | 1966-12-01 | 1967-06-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-06-01 | 1970-12-01 | 1971-06-02 | $7700.00 | Window Closed / Lapsed |