Patent US4284473A successfully refreshed from Google Patents.
Patent US2886779A successfully refreshed from Google Patents.
US2886779A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electric current measuring transformer
Assignee: —
•
Filing: —
•
Granted: 1959-05-12
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Expires: 1976-05-12
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 14:09
CPC Classifications
G; G01; G01R; G01R1/00; G01R1/20; G01R1/22; G01R15/00; G01R15/14; G01R15/18; G01R15/183; G01R15/185; G01R15/20; G01R15/202; G01R33/00; G01R33/02; G01R33/06; G01R33/07
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) | 1962-05-11 | 1962-11-10 | 1963-05-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-05-11 | 1966-11-10 | 1967-05-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-05-11 | 1970-11-10 | 1971-05-12 | $7700.00 | Window Closed / Lapsed |