Patent US2898481A successfully refreshed from Google Patents.
US2898481A
Expired / Lapsed
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Electric circuit arrangement
Assignee: Rheinmetall Air Defence AG
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Filing: 1958-02-27
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Granted: 1959-08-04
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Expires: 1978-02-27
Abstract
No abstract record available.
Inventors
- 👤 Gahwiler Hermann August
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 06:28
CPC Classifications
H; H03; H03K; H03K4/00; H03K4/06; H03K4/08; H03K4/48; H03K4/50; H03K4/501; G; G06; G06G; G06G7/00; G06G7/12; G06G7/16; G06G7/161; H03K17/00; H03K17/28; H03K7/00; H03K7/08
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2614142A
Cited
US2644895A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-08-03 | 1963-02-02 | 1963-08-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-08-03 | 1967-02-02 | 1967-08-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-08-03 | 1971-02-02 | 1971-08-04 | $7700.00 | Window Closed / Lapsed |