US2591159A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Magnetic means for producing compensations and other effects in a cathode-ray tube
Assignee: Gilfillan Bros Inc
•
Filing: 1950-05-29
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Granted: 1952-04-01
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Expires: 1970-05-29
Abstract
No abstract record available.
Inventors
- 👤 Norbert G Kabuss
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 12:18
CPC Classifications
H; H01; H01J; H01J29/00; H01J29/46; H01J29/70; H01J29/701; G; G01; G01R; G01R13/00; G01R13/20; G01S; G01S7/00; G01S7/02; G01S7/04; G01S7/06; G01S7/10; G01S7/12
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2157182A
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US2177688A
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US2258643A
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US2459732A
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US2455977A
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US2541446A
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US2499065A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-04-01 | 1955-10-01 | 1956-04-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-04-01 | 1959-10-01 | 1960-04-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-04-01 | 1963-10-01 | 1964-04-01 | $7700.00 | Window Closed / Lapsed |