US2468751A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Object detecting and locating system
Assignee: Unisys Corp
•
Filing: 1942-01-16
•
Granted: 1949-05-03
•
Expires: 1962-01-16
Abstract
No abstract record available.
Inventors
- 👤 William W Hansen
- 👤 Russell H Varian
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 20:34
CPC Classifications
G; G01; G01S; G01S13/00; G01S13/02; G01S13/06; G01S13/08; G01S13/32; G01S13/50
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1467154A
Cited
US1450966A
Cited
US1876746A
Cited
US2155208A
Cited
US2187618A
Cited
US2176469A
Cited
US2193361A
Cited
US2231929A
Cited
US2183399A
Cited
US2253501A
Cited
US2189549A
Cited
US2273447A
Cited
US2236893A
Cited
US2409448A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-05-02 | 1952-11-01 | 1953-05-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-05-02 | 1956-11-01 | 1957-05-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-05-02 | 1960-11-01 | 1961-05-03 | $7700.00 | Window Closed / Lapsed |