US2511030A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Omnidirectional beacon
Assignee: Individual
•
Filing: 1945-02-27
•
Granted: 1950-06-13
•
Expires: 1965-02-27
Abstract
No abstract record available.
Inventors
- 👤 John D Woodward
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 22:32
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)
US1933248A
Cited
US1815246A
Cited
US1988006A
Cited
US2129004A
Cited
US2253958A
Cited
US2252699A
Cited
US2433351A
Cited
US2394157A
Cited
US2423305A
Cited
US2417807A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-06-12 | 1953-12-12 | 1954-06-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-06-12 | 1957-12-12 | 1958-06-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-06-12 | 1961-12-12 | 1962-06-13 | $7700.00 | Window Closed / Lapsed |