US3518626A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Magnetic memory switching device,particularly for telephony
Assignee: International Standard Electric Corp
•
Filing: 1966-10-31
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Granted: 1970-06-30
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Expires: 1986-10-31
Abstract
No abstract record available.
Inventors
- 👤 Bernard Jean-Jacques Canceill
- 👤 Albert Regnier
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 15:21
CPC Classifications
H; H01; H01H; H01H51/00; H01H51/28; H01H51/284; H01H51/285; H01H51/27; H01H67/00; H01H67/22; H01H67/24; H01H67/26; H01H67/30; H03; H03K; H03K17/00; H03K17/51; H03K17/80; H03K17/81
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3118090A
Cited
US3206649A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-06-29 | 1973-12-29 | 1974-06-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-06-29 | 1977-12-29 | 1978-06-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-06-29 | 1981-12-29 | 1982-06-30 | $7700.00 | Window Closed / Lapsed |