Patent US2586342A successfully refreshed from Google Patents.
US2586342A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tricoordinate radio direction finder
Assignee: Individual
•
Filing: 1948-03-03
•
Granted: 1952-02-19
•
Expires: 1968-03-03
Abstract
No abstract record available.
Inventors
- 👤 Kenneth W Jarvis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 14:39
CPC Classifications
G; G01; G01S; G01S3/00; G01S3/02; G01S3/14; G01S3/38; G01S3/42; G01S3/04; G01S3/06
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1842342A
Cited
US2026254A
Cited
US2266038A
Cited
US2107633A
Cited
US2222933A
Cited
US2338412A
Cited
FR873067A
Cited
US2383420A
Cited
US2392420A
Cited
US2434929A
Cited
US2422072A
Cited
US2449517A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-02-18 | 1955-08-20 | 1956-02-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-02-18 | 1959-08-20 | 1960-02-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-02-18 | 1963-08-20 | 1964-02-19 | $7700.00 | Window Closed / Lapsed |