US2918525A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Blanking circuit
Assignee: Alden Products Co Inc
•
Filing: 1953-06-24
•
Granted: 1959-12-22
•
Expires: 1973-06-24
Abstract
No abstract record available.
Inventors
- 👤 Richard E Fricks
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 02:20
CPC Classifications
H; H04; H04N; H04N3/00; H04N3/10; H04N3/16; H04N3/24
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2186742A
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US2164297A
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US2233881A
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US2244239A
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US2240420A
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US2298864A
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US2548219A
Cited
US2611819A
Cited
US2653186A
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US2657258A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-12-21 | 1963-06-22 | 1963-12-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-12-21 | 1967-06-22 | 1967-12-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-12-21 | 1971-06-22 | 1971-12-22 | $7700.00 | Window Closed / Lapsed |