Patent US2555442A successfully refreshed from Google Patents.
US2555442A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Radar trainer
Assignee: General Precision Laboratory Inc
•
Filing: 1949-08-06
•
Granted: 1951-06-05
•
Expires: 1969-08-06
Abstract
No abstract record available.
Inventors
- 👤 Everett B Hales
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 20:58
CPC Classifications
G; G01; G01S; G01S7/00; G01S7/02; G01S7/40; G01S7/4052; G01S7/4082
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US2178074A
Cited
US2339661A
Cited
US2416088A
Cited
US2438940A
Cited
US2438888A
Cited
US2442351A
Cited
US2453743A
Cited
US2447517A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-06-04 | 1954-12-04 | 1955-06-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-06-04 | 1958-12-04 | 1959-06-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-06-04 | 1962-12-04 | 1963-06-05 | $7700.00 | Window Closed / Lapsed |