US2507995A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Television receiving system
Assignee: Avco Manufacturing Corp
•
Filing: 1947-11-12
•
Granted: 1950-05-16
•
Expires: 1967-11-12
Abstract
No abstract record available.
Inventors
- 👤 Reid John Drysdale
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 12:49
CPC Classifications
H; H03; H03J; H03J3/00; H03J3/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1612952A
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US1666505A
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US1851354A
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US1816461A
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US2029461A
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US2062379A
Cited
US2173898A
Cited
US2285372A
Cited
US2383322A
Cited
US2421676A
Cited
US2440308A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-05-15 | 1953-11-14 | 1954-05-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-05-15 | 1957-11-14 | 1958-05-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-05-15 | 1961-11-14 | 1962-05-16 | $7700.00 | Window Closed / Lapsed |