US2897443A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Moving magnet oscillograph
Assignee: —
•
Filing: —
•
Granted: 1959-07-28
•
Expires: 1976-07-28
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 13:23
CPC Classifications
G; G01; G01R; G01R13/00; G01R13/04; H; H02; H02K; H02K1/00; H02K1/06; H02K1/22; H02K1/27; H02K1/2706; H02K1/272; H02K1/2726; H02K1/2733; H02K26/00; H02K37/00; H02K37/10; H02K37/12; H02K37/14
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1750275A
Cited
US2002445A
Cited
US2411997A
Cited
US2573998A
Cited
US2507708A
Cited
US2635155A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-07-27 | 1963-01-26 | 1963-07-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-07-27 | 1967-01-26 | 1967-07-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-07-27 | 1971-01-26 | 1971-07-28 | $7700.00 | Window Closed / Lapsed |