US2476419A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Resonance-receiving relay switching device
Assignee: Landis and Gyr AG
•
Filing: 1945-03-28
•
Granted: 1949-07-19
•
Expires: 1965-03-28
Abstract
No abstract record available.
Inventors
- 👤 Koenig Werner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 01:09
CPC Classifications
H; H02; H02J; H02J13/00; H02J13/13; H02J13/1311; H02J13/1313; Y; Y02; Y02E; Y02E60/00; Y04; Y04S; Y04S40/00; Y04S40/12; Y04S40/121
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US803825A
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US1083669A
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US1377573A
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FR681942A
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US1970333A
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US1943463A
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FR749283A
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US1994325A
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US2021753A
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US2021754A
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US2040677A
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DE699782C
Cited
US2231174A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-07-18 | 1953-01-17 | 1953-07-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-07-18 | 1957-01-17 | 1957-07-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-07-18 | 1961-01-17 | 1961-07-19 | $7700.00 | Window Closed / Lapsed |