US3457463A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for generating electric currents of small magnitude
Assignee: Individual
•
Filing: 1965-07-07
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Granted: 1969-07-22
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Expires: 1985-07-07
Abstract
No abstract record available.
Inventors
- 👤 Lewis Balamuth
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 10:46
CPC Classifications
G; G10; G10G; G10G3/00; G10G3/04; G01; G01H; G01H11/00; G01H3/00; G01H3/04; G01H3/08; H; H04; H04R; H04R1/00; H04R1/20; H04R1/22; H04R23/00
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) | 1972-07-21 | 1973-01-20 | 1973-07-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-07-21 | 1977-01-20 | 1977-07-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-07-21 | 1981-01-20 | 1981-07-22 | $7700.00 | Window Closed / Lapsed |