US2625852A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Reflecting light ray screen system
Assignee: Individual
•
Filing: 1950-01-13
•
Granted: 1953-01-20
•
Expires: 1970-01-13
Abstract
No abstract record available.
Inventors
- 👤 Clarence H Van Orden
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 14:20
CPC Classifications
G; G03; G03B; G03B21/00; G03B21/54; G03B21/56; G03B21/60; G03B21/62
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1104407A
Cited
US1808743A
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US1821626A
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US2029300A
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US2148260A
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US2117857A
Cited
US2218875A
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US2334962A
Cited
US2336508A
Cited
US2380241A
Cited
FR937781A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-01-20 | 1956-07-21 | 1957-01-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-01-20 | 1960-07-21 | 1961-01-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-01-20 | 1964-07-21 | 1965-01-20 | $7700.00 | Window Closed / Lapsed |