US2994081A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Radio direction finder
Assignee: Individual
•
Filing: 1953-03-06
•
Granted: 1961-07-25
•
Expires: 1973-03-06
Abstract
No abstract record available.
Inventors
- 👤 Edward C Jordan
- 👤 Harold D Webb
- 👤 Thomas R O'meara
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 07:53
CPC Classifications
G; G01; G01S; G01S1/00; G01S1/02
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US2183634A
Cited
US2209191A
Cited
US2238951A
Cited
US2344296A
Cited
US2408039A
Cited
US2422100A
Cited
US2399671A
Cited
US2428966A
Cited
US2402688A
Cited
US2530828A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-07-24 | 1965-01-23 | 1965-07-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-07-24 | 1969-01-23 | 1969-07-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-07-24 | 1973-01-23 | 1973-07-25 | $7700.00 | Window Closed / Lapsed |