US3456077A
Expired / Lapsed
US
⏱️ 0.0 years remaining
High speed electronic keyboard assembly
Assignee: Navigation Computer Corp
•
Filing: 1965-09-22
•
Granted: 1969-07-15
•
Expires: 1985-09-22
Abstract
No abstract record available.
Inventors
- 👤 John P Jones Jr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 23:23
CPC Classifications
H; H03; H03M; H03M11/00; H03M11/22; H04; H04L; H04L13/00; H04L13/16
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2952731A
Cited
US2927960A
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US2942253A
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US3206743A
Cited
US3115583A
Cited
US3214735A
Cited
US3239608A
Cited
US3232222A
Cited
US3350688A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-07-14 | 1973-01-13 | 1973-07-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-07-14 | 1977-01-13 | 1977-07-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-07-14 | 1981-01-13 | 1981-07-15 | $7700.00 | Window Closed / Lapsed |