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US2889547A
Expired / Lapsed
US
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Control circuit for character display tube
Assignee: Teleregister Corp
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Filing: 1954-12-29
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Granted: 1959-06-02
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Expires: 1974-12-29
Abstract
No abstract record available.
Inventors
- 👤 Charles A Wesley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 01:05
CPC Classifications
G; G09; G09G; G09G1/00; G09G1/22
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1626560A
Cited
US2728906A
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US2718634A
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US2735956A
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US2731631A
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US2728872A
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US2769116A
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 |