US2832820A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Scanning mechanism
Assignee: Servo Corp of America
•
Filing: 1953-03-19
•
Granted: 1958-04-29
•
Expires: 1973-03-19
Abstract
No abstract record available.
Inventors
- 👤 Blackstone Henry
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 23:51
CPC Classifications
H; H04; H04N; H04N3/00; H04N3/02; H04N3/08; G; G03; G03G; G03G15/00; G03G15/22; G03G15/32; G03G15/321; G03G15/325; Y; Y10; Y10S; Y10S246/00; Y10S246/01
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1985715A
Cited
US2553606A
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US2419024A
Cited
US2465957A
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US2570251A
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US2575742A
Cited
US2578307A
Cited
US2709716A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-04-28 | 1961-10-28 | 1962-04-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-04-28 | 1965-10-28 | 1966-04-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-04-28 | 1969-10-28 | 1970-04-29 | $7700.00 | Window Closed / Lapsed |