US3054952A
Expired / Lapsed
US
⏱️ 0.0 years remaining
System for measuring or indicating the three-phase power
Assignee: Siemens Schuckertwerke AG
•
Filing: 1959-04-15
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Granted: 1962-09-18
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Expires: 1979-04-15
Abstract
No abstract record available.
Inventors
- 👤 Lehrmann Leon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 04:23
CPC Classifications
G; G01; G01R; G01R21/00; G01R21/08; Y; Y10; Y10S; Y10S310/00; Y10S310/03
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2886779A
Cited
US2545369A
Cited
DE1010156B
Cited
US2924775A
Cited
GB802214A
Cited
FR1151619A
Cited
FR1158776A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-09-17 | 1966-03-19 | 1966-09-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-09-17 | 1970-03-19 | 1970-09-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-09-17 | 1974-03-19 | 1974-09-18 | $7700.00 | Window Closed / Lapsed |