US3042887A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Magnetic-field responsive resistance device
Assignee: Siemens Schuckertwerke AG
•
Filing: 1959-09-16
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Granted: 1962-07-03
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Expires: 1979-09-16
Abstract
No abstract record available.
Inventors
- 👤 Kuhrt Friedrich
- 👤 Maaz Karl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 16:03
CPC Classifications
G; G01; G01R; G01R33/00; G01R33/02; G01R33/06; G01R33/09
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US333394A
Cited
US829808A
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US1948382A
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US2460795A
Cited
US2692321A
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US2736858A
Cited
US2745931A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-07-02 | 1966-01-01 | 1966-07-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-07-02 | 1970-01-01 | 1970-07-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-07-02 | 1974-01-01 | 1974-07-03 | $7700.00 | Window Closed / Lapsed |