US3497713A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Permanent,variable,static magnetic field source
Assignee: Unisys Corp
•
Filing: 1968-07-05
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Granted: 1970-02-24
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Expires: 1988-07-05
Abstract
No abstract record available.
Inventors
- 👤 William W Davis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 18:52
CPC Classifications
H; H03; H03K; H03K19/00; H03K19/02; H03K19/16; H03K19/162; G; G06; G06F; G06F7/00; G06F7/38; G06F7/383; G11; G11C; G11C27/00; G11C27/02; G11C27/022; H03F; H03F7/00; H03F7/02; H03K3/00; H03K3/02; H03K3/45; H03K3/47
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3113297A
Cited
US3193694A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-02-23 | 1973-08-25 | 1974-02-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-02-23 | 1977-08-25 | 1978-02-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-02-23 | 1981-08-25 | 1982-02-24 | $7700.00 | Window Closed / Lapsed |