US2962625A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Oscillograph deflection circuit
Assignee: Dresser Industries Inc
•
Filing: 1958-10-06
•
Granted: 1960-11-29
•
Expires: 1978-10-06
Abstract
No abstract record available.
Inventors
- 👤 Teddy W Berwin
- 👤 Frederick F Liu
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 10:07
CPC Classifications
G; G01; G01R; G01R13/00; G01R13/20; G01R13/22; G01R13/24; H; H03; H03M; H03M1/00; H03M1/12; H03M1/22; H03M1/32
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2368448A
Cited
US2378383A
Cited
US2426201A
Cited
US2484618A
Cited
US2577758A
Cited
US2871404A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-11-29 | 1964-05-30 | 1964-11-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-11-29 | 1968-05-30 | 1968-11-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-11-29 | 1972-05-30 | 1972-11-29 | $7700.00 | Window Closed / Lapsed |