US3516026A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and means for attenuating common mode electrical noise currents
Assignee: International Business Machines Corp
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Filing: 1967-03-03
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Granted: 1970-06-02
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Expires: 1987-03-03
Abstract
No abstract record available.
Inventors
- 👤 John E Curran
- 👤 John F O'donnell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 06:30
CPC Classifications
H; H03; H03H; H03H7/00; H03H7/42; H03H7/425; H03H7/427; H03H1/00; H03H1/0007; H03H7/01; H03H7/0123
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) | 1973-06-01 | 1973-12-01 | 1974-06-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-06-01 | 1977-12-01 | 1978-06-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-06-01 | 1981-12-01 | 1982-06-02 | $7700.00 | Window Closed / Lapsed |