US3274553A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Time-division, multiplex, numericalcontrol system
Assignee: Hitachi Ltd
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Filing: 1963-01-17
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Granted: 1966-09-20
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Expires: 1983-01-17
Abstract
No abstract record available.
Inventors
- 👤 Oya Yuichiro
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 19:39
CPC Classifications
G; G05; G05B; G05B19/00; G05B19/02; G05B19/418; G05B19/4181; Y; Y02; Y02P; Y02P90/00; Y02P90/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-09-19 | 1970-03-21 | 1970-09-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-09-19 | 1974-03-21 | 1974-09-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-09-19 | 1978-03-21 | 1978-09-20 | $7700.00 | Window Closed / Lapsed |