US3431487A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Current probe with auxiliary winding for unwanted signal rejection
Assignee: Susquehanna Corp
•
Filing: 1967-02-13
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Granted: 1969-03-04
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Expires: 1987-02-13
Abstract
No abstract record available.
Inventors
- 👤 John W Savage
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 17:35
CPC Classifications
G; G01; G01R; G01R19/00; G01R19/10; G01R15/00; G01R15/14; G01R15/18; G01R15/183; G01R15/185; G01R19/145; G01R19/15
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2779908A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-03-03 | 1972-09-02 | 1973-03-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-03-03 | 1976-09-02 | 1977-03-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-03-03 | 1980-09-02 | 1981-03-04 | $7700.00 | Window Closed / Lapsed |