Patent US2553606A successfully refreshed from Google Patents.
US2553606A
Expired / Lapsed
US
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Plural image radio locator system
Assignee: Individual
•
Filing: 1944-10-09
•
Granted: 1951-05-22
•
Expires: 1964-10-09
Abstract
No abstract record available.
Inventors
- 👤 Robert H Rines
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 19:26
CPC Classifications
G; G01; G01S; G01S7/00; G01S7/02; G01S7/04; G01S7/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
DE554472C
Cited
US2106770A
Cited
US1540318A
Cited
FR659533A
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US2083292A
Cited
US2075808A
Cited
US2121771A
Cited
US2207716A
Cited
US2135577A
Cited
US2151549A
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US2415094A
Cited
US2262942A
Cited
US2241586A
Cited
US2189549A
Cited
GB541959A
Cited
US2408435A
Cited
US2426189A
Cited
US2433368A
Cited
US2427220A
Cited
US2423125A
Cited
US2416720A
Cited
US2449542A
Cited
US2458654A
Cited
US2409456A
Cited
US2442951A
Cited
US2453414A
Cited
US2436380A
Cited
US2438735A
Cited
US2429933A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-05-21 | 1954-11-20 | 1955-05-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-05-21 | 1958-11-20 | 1959-05-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-05-21 | 1962-11-20 | 1963-05-22 | $7700.00 | Window Closed / Lapsed |