US2654884A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Radio distance measuring system
Assignee: Unisys Corp
•
Filing: 1947-10-21
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Granted: 1953-10-06
•
Expires: 1967-10-21
Abstract
No abstract record available.
Inventors
- 👤 Palmer Winslow
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:46
CPC Classifications
G; G01; G01S; G01S13/00; G01S13/74; G01S13/82; G01S13/84; G01S1/00; G01S1/02; G01S13/02; G01S13/50; G01S13/58; G01S13/583; G01S3/00; G01S3/02; G01S3/14; G01S3/38; G01S3/42
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1750668A
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US2151323A
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US2198113A
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US2268587A
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US2259982A
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US2248727A
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US2405239A
Cited
US2435615A
Cited
GB581568A
Cited
US2412003A
Cited
US2470787A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-10-05 | 1957-04-06 | 1957-10-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-10-05 | 1961-04-06 | 1961-10-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-10-05 | 1965-04-06 | 1965-10-06 | $7700.00 | Window Closed / Lapsed |