US2560587A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Range and direction finder
Assignee: Individual
•
Filing: 1945-10-31
•
Granted: 1951-07-17
•
Expires: 1965-10-31
Abstract
No abstract record available.
Inventors
- 👤 Robert E Miller
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 14:17
CPC Classifications
G; G01; G01S; G01S7/00; G01S7/02; G01S7/28; G01S7/282; G01S1/00; G01S1/72; Y; Y10; Y10S; Y10S367/00; Y10S367/91
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US299968A
Cited
US1562950A
Cited
US1547574A
Cited
US1724576A
Cited
US1924174A
Cited
US2012837A
Cited
US2108090A
Cited
US2083344A
Cited
US2116717A
Cited
US2112541A
Cited
US2407198A
Cited
US2406316A
Cited
US2371988A
Cited
GB552072A
Cited
US2416088A
Cited
US2403527A
Cited
US2460316A
Cited
US2444235A
Cited
US2446937A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-07-16 | 1955-01-15 | 1955-07-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-07-16 | 1959-01-15 | 1959-07-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-07-16 | 1963-01-15 | 1963-07-17 | $7700.00 | Window Closed / Lapsed |