US2502454A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and means for improving signal to noise ratio of selected pulse signals
Assignee: STC PLC
•
Filing: 1944-12-27
•
Granted: 1950-04-04
•
Expires: 1964-12-27
Abstract
No abstract record available.
Inventors
- 👤 Donald D Grieg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 23:11
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)
US1924174A
Cited
GB491728A
Cited
US2227057A
Cited
US2310692A
Cited
US2410233A
Cited
US2406316A
Cited
US2361437A
Cited
US2412995A
Cited
GB552072A
Cited
US2416088A
Cited
US2419620A
Cited
US2401416A
Cited
US2403527A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-04-03 | 1953-10-03 | 1954-04-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-04-03 | 1957-10-03 | 1958-04-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-04-03 | 1961-10-03 | 1962-04-04 | $7700.00 | Window Closed / Lapsed |