US2859653A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Wide-angle prism scanner
Assignee: Servo Corp of America
•
Filing: 1955-02-21
•
Granted: 1958-11-11
•
Expires: 1975-02-21
Abstract
No abstract record available.
Inventors
- 👤 Blackstone Henry
- 👤 Frank G Willey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:40
CPC Classifications
H; H04; H04N; H04N3/00; H04N3/02; H04N3/08
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1697941A
Cited
US2408115A
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US2597001A
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US2465957A
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US2490899A
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US2506946A
Cited
GB670960A
Cited
US2779819A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-11-10 | 1962-05-12 | 1962-11-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-11-10 | 1966-05-12 | 1966-11-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-11-10 | 1970-05-12 | 1970-11-11 | $7700.00 | Window Closed / Lapsed |