US2454782A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Adjustable expanded sweep for radar oscilloscopes
Assignee: STC PLC
•
Filing: 1942-12-08
•
Granted: 1948-11-30
•
Expires: 1962-12-08
Abstract
No abstract record available.
Inventors
- 👤 Rosa Louis A De
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 18:44
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)
US1933219A
Cited
US1932589A
Cited
US2146862A
Cited
US2227598A
Cited
US2189549A
Cited
US2294863A
Cited
US2313906A
Cited
US2368448A
Cited
US2306386A
Cited
US2355363A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-11-30 | 1952-05-31 | 1952-11-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-11-30 | 1956-05-31 | 1956-11-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-11-30 | 1960-05-31 | 1960-11-30 | $7700.00 | Window Closed / Lapsed |