Patent US2773240A successfully refreshed from Google Patents.
US2773240A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Moving-coil electrical instruments
Assignee: —
•
Filing: —
•
Granted: 1956-12-04
•
Expires: 1973-12-04
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 19:50
CPC Classifications
G; G01; G01R; G01R5/00; G01R5/02; G01R5/08; H; H01; H01F; H01F7/00; H01F7/06; H01F7/08; H01F7/16; H01F7/1607; H01F7/1615
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2537221A
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US1597327A
Cited
US1952160A
Cited
US2515014A
Cited
US627908A
Cited
US1031408A
Cited
US1426619A
Cited
US2205309A
Cited
US2472013A
Cited
US2560879A
Cited
US2508547A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-12-04 | 1960-06-04 | 1960-12-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-12-04 | 1964-06-04 | 1964-12-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-12-04 | 1968-06-04 | 1968-12-04 | $7700.00 | Window Closed / Lapsed |