Patent US3983645A successfully refreshed from Google Patents.
Patent US2604590A successfully refreshed from Google Patents.
US2604590A
Expired / Lapsed
US
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Cathode-ray tube sweep circuit
Assignee: Individual
•
Filing: 1945-10-16
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Granted: 1952-07-22
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Expires: 1965-10-16
Abstract
No abstract record available.
Inventors
- 👤 Volney C Wilson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 07:05
CPC Classifications
G; G01; G01S; G01S7/00; G01S7/02; G01S7/04; G01S7/06; G01S7/10; G01S7/12; G01R; G01R13/00; G01R13/20; G01R13/22; G01R13/24
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1955332A
Cited
US2042334A
Cited
US2411030A
Cited
US2395966A
Cited
US2437970A
Cited
US2436890A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-07-22 | 1956-01-21 | 1956-07-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-07-22 | 1960-01-21 | 1960-07-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-07-22 | 1964-01-21 | 1964-07-22 | $7700.00 | Window Closed / Lapsed |