US2841787A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Radio locating apparatus
Assignee: ULTRA ELECTRIC Inc
•
Filing: 1953-05-08
•
Granted: 1958-07-01
•
Expires: 1973-05-08
Abstract
No abstract record available.
Inventors
- 👤 Knott Leonard George Walter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 14:57
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)
AU108204B
Cited
US2403626A
Cited
GB577824A
Cited
US2427657A
Cited
US2403429A
Cited
US2487759A
Cited
US2492354A
Cited
US2490777A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-06-30 | 1961-12-30 | 1962-07-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-06-30 | 1965-12-30 | 1966-07-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-06-30 | 1969-12-30 | 1970-07-01 | $7700.00 | Window Closed / Lapsed |