US2918671A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Identifying reflector with reflection dissymmetry
Assignee: Individual
•
Filing: 1946-01-15
•
Granted: 1959-12-22
•
Expires: 1966-01-15
Abstract
No abstract record available.
Inventors
- 👤 Halpern Otto
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 18:00
CPC Classifications
G; G01; G01S; G01S13/00; G01S13/74; G01S13/75; G01S13/751
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1370093A
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US1576730A
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DE694523C
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FR802728A
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US2212110A
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US2293839A
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US2349440A
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US2464006A
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US2472212A
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US2462102A
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US2443643A
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US2472782A
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 |