US3015739A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Direct-current charged magnetic modulator
Assignee: General Electric Co
•
Filing: 1958-10-31
•
Granted: 1962-01-02
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Expires: 1978-10-31
Abstract
No abstract record available.
Inventors
- 👤 Erich W Mantenffel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 00:37
CPC Classifications
H; H03; H03K; H03K3/00; H03K3/02; H03K3/53; H03K3/57; H03K3/45
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2063307A
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US2693535A
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GB666575A
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US2877386A
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US2830199A
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US2876386A
Cited
US2909705A
Cited
US2923856A
Cited
US2912602A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-01-01 | 1965-07-03 | 1966-01-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-01-01 | 1969-07-03 | 1970-01-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-01-01 | 1973-07-03 | 1974-01-02 | $7700.00 | Window Closed / Lapsed |