US3471784A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Combination voltage and magnetic loop
Assignee: General Electric Co
•
Filing: 1967-09-14
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Granted: 1969-10-07
•
Expires: 1987-09-14
Abstract
No abstract record available.
Inventors
- 👤 Richard H Arndt
- 👤 Edward J Kotski
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 11:54
CPC Classifications
H; H01; H01F; H01F38/00; H01F38/20; H01F38/22; H01F38/34; H01F38/36; G; G01; G01R; G01R15/00; G01R15/14; G01R15/142
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-10-06 | 1973-04-07 | 1973-10-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-10-06 | 1977-04-07 | 1977-10-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-10-06 | 1981-04-07 | 1981-10-07 | $7700.00 | Window Closed / Lapsed |