US3536932A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mechanical-electrical transducer
Assignee: Nortel Networks Ltd
•
Filing: 1969-04-10
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Granted: 1970-10-27
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Expires: 1989-04-10
Abstract
No abstract record available.
Inventors
- 👤 Patrice Louis Dav Humbert-Droz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 13:15
CPC Classifications
G; G06; G06F; G06F3/00; G06F3/01; G06F3/03; G06F3/041; F; F15; F15C; F15C1/00; F15C1/001; H; H03; H03K; H03K17/00; H03K17/94; H03K17/965; H03K17/967; H03K17/97; H04; H04M; H04M1/00; H04M1/02; H04M1/23
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) | 1973-10-26 | 1974-04-27 | 1974-10-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-10-26 | 1978-04-27 | 1978-10-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-10-26 | 1982-04-27 | 1982-10-27 | $7700.00 | Window Closed / Lapsed |