US2901664A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Circuit-arrangement for producing adjustable reference lines on the picture screens of cathode-ray tubes simultaneously with the curve of a phenomenon
Assignee: US Philips Corp
•
Filing: 1956-03-13
•
Granted: 1959-08-25
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Expires: 1976-03-13
Abstract
No abstract record available.
Inventors
- 👤 Firmenich Klaus
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 05:16
CPC Classifications
G; G01; G01R; G01R13/00; G01R13/20; G01R13/22; G01R13/30
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2563395A
Cited
US2466590A
Cited
US2602839A
Cited
US2639379A
Cited
US2678406A
Cited
US2731583A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-08-24 | 1963-02-23 | 1963-08-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-08-24 | 1967-02-23 | 1967-08-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-08-24 | 1971-02-23 | 1971-08-25 | $7700.00 | Window Closed / Lapsed |