US2736019A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tracking-system
Assignee: —
•
Filing: —
•
Granted: 1956-02-21
•
Expires: 1973-02-21
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 02:37
CPC Classifications
G; G01; G01S; G01S13/00; G01S13/66; G01S13/68; G01S13/685
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2012480A
Cited
US2166991A
Cited
US2408414A
Cited
US2523398A
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US2445213A
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US2305614A
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US2456666A
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US2480829A
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US2427029A
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US2416155A
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US2411916A
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US2425009A
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US2411876A
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US2467361A
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US2473175A
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US2423390A
Cited
US2433991A
Cited
US2562281A
Cited
US2566020A
Cited
US2510692A
Cited
GB610664A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-02-20 | 1959-08-22 | 1960-02-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-02-20 | 1963-08-22 | 1964-02-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-02-20 | 1967-08-22 | 1968-02-21 | $7700.00 | Window Closed / Lapsed |