Patent US2634413A successfully refreshed from Google Patents.
US2634413A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Velocity measuring system utilizing radio technique
Assignee: AT&T Inc
•
Filing: 1948-04-08
•
Granted: 1953-04-07
•
Expires: 1968-04-08
Abstract
No abstract record available.
Inventors
- 👤 Ralph K Potter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:47
CPC Classifications
G; G01; G01S; G01S13/00; G01S13/02; G01S13/50; G01S13/58; G01S13/581
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US2423023A
Cited
US2450945A
Cited
US2407000A
Cited
US2408742A
Cited
US2520166A
Cited
US2422064A
Cited
US2522367A
Cited
US2535274A
Cited
US2514924A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-04-06 | 1956-10-06 | 1957-04-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-04-06 | 1960-10-06 | 1961-04-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-04-06 | 1964-10-06 | 1965-04-07 | $7700.00 | Window Closed / Lapsed |